144results about How to "Will not cause leakage" patented technology

The invention discloses a mobile phone unlocking method based on random digital arrays and a mobile phone. The method comprises the following steps: the mobile phone screen is lit up after an operating order from a user is received, an unlocking interface with a random digital array is automatically generated, and the mobile phone enters into the unlocking interface; an unlock code input by the user is received and recognized through the unlocking interface with the random digital array; and when the unlocking password input by the user is matched with a preset unlocking password, the screen of the mobile phone is controlled to be unlocked. When the mobile phone screen is unlocked with the method, the unlocking digital arrays are different every time, so as to effectively avoid the problem that the unlocking password is leaked due to touching traces left on the mobile phone screen or the unlocking gesture and movement of the user, and improve the security of the password. Meanwhile, the unlocking method provided by the invention is easy to operate and provides convenience to the user.

The invention relates to the technical field of microfluidic chip chemiluminescent immunoassay, in particular to a chemiluminescent detection microfluidic chip and a chemiluminescent detection microfluidic chip system and application thereof. The chemiluminescent detection microfluidic chip comprises a sample feeding unit (1), a liquid storage unit (2), a reaction unit (3) and a waste liquid unit(4), and further comprises a quantifying unit (5) for quantifying a sample to be detected, wherein the quantifying unit (5) comprises a liquid inlet (51) connected with the sample feeding unit, a liquid outlet (52) connected with the waste liquid unit, a quantifying structure (53) for quantifying, and a temporary storage structure (54) for temporarily storing excess liquid, which is connected withthe reaction unit. The chemiluminescent detection microfluidic chip system consists of three layers, namely an upper layer, a middle layer and a lower layer; the middle layer is the chip; the upper layer and the lower layer are used for closing the middle layer; the upper layer is provided with a sample feeding hole connected with the sample feeding unit and a yielding hole corresponding to the liquid storage unit. The chemiluminescent detection microfluidic chip is simple in detection process, can quantify the reaction sample and has high sensitivity and strong repeatability.

The invention relates to the field of micro-fluidic chip molecular diagnosis, and in particular to a molecular diagnosis micro-fluidic chip, a molecular diagnosis micro-fluidic chip system and applications of the molecular diagnosis micro-fluidic chip and the molecular diagnosis micro-fluidic chip system. The chip comprises a sample injection unit (1) which is used for receiving to-be-detected samples, at least one liquid storage unit (2) for storing reaction reagents, a cell lysis unit (3) for conducting cell lysis and a nucleic acid amplification unit (4) for conducting nucleic acid amplification, wherein the cell lysis unit comprises a slit (31) as well as a first compartment (32) and a second compartment (33) which are separated by virtue of the slit; at least one compartment is configured with grinding micro-beads; the first compartment communicates with the sample injection unit; and the second compartment communicates with the at least one liquid storage unit, so as to receive acell lysis solution. The chip system is composed of three layers, namely an upper layer, a middle layer and a lower layer, wherein the chip is arranged on the middle layer; the upper and lower layersare used for covering and sealing the middle layer; the upper layer is provided with a sample injection hole which is connected to the sample injection unit, and the sample injection hole correspondsto an avoiding hole of the liquid storage unit. The chip is simple in detection process, high in sensitivity and strong in repeatability, and reaction samples can be quantified.

The invention discloses an atomized liquid heating and atomizing device which comprises a shell. A liquid storage barrel used for containing atomized liquid is arranged in the shell, a tubular or needle-shaped liquid outlet is arranged at one end of the liquid storage barrel, a piston capable of sealing the liquid storage barrel and capable of sliding along the inner wall of the same is arranged at the other end of the liquid storage barrel and driven by a driving device to slide towards the liquid outlet, an electric heating device is arranged at the liquid outlet, and an inspiration port communicated with the liquid outlet is arranged at one end of the shell. The atomized liquid heating and atomizing device has the advantage that danger that fibers are inhaled into a lung due to taking high-temperature cotton as an oil suction part can be avoided.

The invention provides a quick connector for a gas conveying bellows and belongs to the technical field of connectors. The quick connector solves the problem that an existing quick connector easily causes gas leakage in use. The quick connector comprises a barrel-shaped connecting head. In installation, a sealing washer is sleeved at the end of the bellows. A locating ring, a safety buckle and a locking nut are further sequentially sleeved on the bellows on one side of the sealing washer. The locating ring can be axially fixedly connected with the bellows, one end of the locating ring abuts against one end of the sealing washer, the safety buckle is barrel-shaped and is sleeved at the other end of the locating ring, a clamping part is arranged on an outer side wall of the safety buckle, an annular groove is arranged on an inner wall of the connecting head, and the clamping part is embedded in the annular groove when the locking nut is connected with the connecting head. After the quick connector is installed, one end of the bellows is always kept in a sealed state, and the bellows is good in safety and sealing effect. In addition, a casing of the quick connector is insulated with a bellows body, and the quick connector is safe to use.

The invention discloses a flip-chip LED chip and a manufacturing method thereof, belonging to the field of semiconductor technology. The flip-chip LED chip comprises a substrate, an N-type semiconductor layer, an active layer, a P-type semiconductor layer, a transparent conductive film, a reflective layer, a P-type electrode, an N-type electrode, a passivation layer, a P-type pad, an N-type pad and an anti-pin layer; The P-type pad is arranged on the passivation layer around the P-type electrode and the region where the P-type electrode is located, and the N-type pad is arranged on the passivation layer around the N-type electrode and the region where the N-type electrode is located. The anti-thimble layer is arranged on the passivation layer between the P-type pad and the N-type pad; Theanti-thimble layer is formed of a metal material, and the anti-thimble layer is spaced between the P-type pad and the N-type pad. As that metal material is adopt to form the anti-thimble layer, the metal material has good ductility, the anti-thimble lay can effectively release the acting force of the metal thimble, the chip process layer is for with good protection, and the metal thimble can effectively prevent the chip process layer from being damaged by the metal thimble.

The invention discloses an integral type oil-paper high-voltage bushing which comprises a glass reinforced plastic cylinder, a conducting rod, an expander, a mounting flange, a base and a voltage-sharing ball, wherein the mounting flange for being connected with a transformer is hermetically arranged in the middle position of the glass reinforced plastic cylinder in a sleeving manner; a silicone rubber umbrella cover is cast on the outer side of the glass reinforced plastic cylinder at a position above the mounting flange, and semi-conductive paint is sprayed on the outer side of the glass reinforced plastic cylinder at a position below the mounting flange and forms an isoelectric cylinder which has the same diameter as the flange; the base is hermetically arranged at the bottom of the glass reinforced plastic cylinder; the conducting rod is inserted in the glass reinforced plastic cylinder and integrated with the mounting flange, the glass reinforced plastic cylinder and the base; the expander is arranged at the top of the glass reinforced plastic cylinder, and the voltage-sharing ball is arranged at the bottom of the glass reinforced plastic cylinder. The integral type oil-paper high-voltage bushing is simple in structure; oil in the bushing is completely isolated from that in the transformer; the probability of failure of the product is greatly reduced; the transformer can be effectively prevented from catching fire and burning; the product has a light weight; the mounting is convenient; the shock resistance and bending resistance are good; maintenance is basically avoided.

The invention relates to a preparation method of a cell, in particular to a preparation method of an MWT solar cell, and belongs to the technical field of MWT solar cell module processing. The preparation method of the MWT solar cell comprises the steps: performing punching, texturing and diffusion of a silicon wafer, and then performing etching, oxidation annealing, back passivation, front coating, laser grooving, silk-screen printing and sintering to form ohmic contact; and finally obtaining the MWT solar cell. The etching step comprises the substeps: removing phosphorosilicate glass on theback surface and four side surfaces of the silicon wafer, and then adding reaction solution for alkali polishing to obtain the back surface with the reflectivity of 40-50%. Compared with an acid etching process, the groove type alkali polishing process has the advantages that the back polishing effect of the silicon wafer is more excellent, the weight is reduced, and the fragment risk is reduced;the back reflectivity is higher, the internal reflection effect of a long wave band is improved, uniform deposition of a passivation film Al2O3 is facilitated, the passivation effect on a silicon wafer is improved, and the battery efficiency gain is at least 0.15% compared with the prior art.

The invention discloses a preparation method of a GaN-based light-emitting diode chip. The method comprises the following steps: (1) etching a table board structure from a p-type GaN layer to an n-type GaN layer of a GaN-based epitaxial wafer, preparing a table board on the n-type GaN layer, and simultaneously removing a residual photoresist on the surface; (2) growing current blocking layers on the outer surfaces of the p-type GaN layer and the n-type GaN layer; (3) etching the required patterns on the current blocking layers, reserving the current blocking layer on the upper surface of the p-type GaN layer and the current blocking layer on the side wall of a P / N junction; (4) depositing an nano-indium tin oxide (ITO) transparent conductive film on the surface of the p-type GaN layer; (5) respectively preparing a p-type electrode and an n-type electrode on the ITO transparent conductive film and the table board of the n-type GaN layer; and (6) preparing a passivation layer and exposing a metal electrode through photoetching. According to the method, the current blocking layers on the upper surface of the p-type GaN layer and the side wall of the P / N junction are reserved; the subsequent ITO transparent conductive film is prevented from contacting the metal electrode; the residual ITO or metal on the P / N junction is avoided; and electric leakage is not caused.

The invention relates to the technical field of biochemical detection of micro-fluidic chips and in particular relates to a biochemical detection micro-fluidic chip, a biochemical detection micro-fluidic chip system and applications thereof. The chip comprises a sampling unit (1), a reaction unit (3) and a waste liquid unit (4) and a first quantifying unit (5); the first quantifying unit (5) is used for quantifying a to-be-detected sample and is composed of a first slit (51) as well as a first sample chamber (52) and a second sample chamber (53) which are separated by the first slit (51); thefirst sample chamber communicates with the sampling unit, and the second sample chamber communicates with the waste liquid unit; and a third error reporting unit (14) is arranged between the reactionunit and the waste liquid unit and is provided with a chamber for receiving the to-be-detected sample from the reaction unit. The chip system is composed of three layers including an upper layer, a middle layer and a lower layer; the middle layer is the chip; the upper layer and the lower layer are used for covering and sealing the middle layer; and a sampling hole connected with the sampling unitand a demising hole corresponding to a liquid storage unit are formed in the upper layer. The chip is simple in detection process, capable of quantifying a reaction sample, high in sensitivity and strong in repeatability.

The embodiment of the invention provides negative thermal expansion microspheres, a preparation method and a liquid crystal display panel and relates to the technical field of display. A LC Margin range can be widened, low-temperature bubbles and uniform gravitational display are decreased, and the problem of liquid crystal clearing points for ensuring normal display can be avoided. The liquid crystal display panel comprises an adjusting layer arranged on the surface, in contact with a liquid crystal layer, of an array substrate and / or arranged on the surface, in contact with a liquid crystal layer, of a paired box substrate, wherein the adjusting layer includes the negative thermal expansion microspheres and is arranged in a no-light-transmitting portion of a display zone and a non-display zone within a frame adhesive, and the negative thermal expansion microspheres include sealed housings and inner cores coated by the sealed housings. The sealed housings are made from a negative thermal expansion material. The inner cores comprise heat storage bodies, and the heat storage bodies are made from a heat storage material. The volumes of the heat storage bodies in the heat absorbing process are smaller than or equal to the volumes of the sealed housings in thermal expansion.

The invention relates to the technical field of wearable equipment, and discloses wearable equipment and a message play method thereof. The method comprises that when the wearable equipment detects arrival of a message, whether the wearable equipment receives a play instruction to trigger play of the message is detected; and if YES, a bone conduction loudspeaker of the wearable equipment is controlled to convert a voice signal to play the message into a vibration signal and transmit the bone signal via a bone medium. According to embodiments of the invention, the message receiving convenience is improved, sound leakage is not caused due to the fact that the bone conduction loudspeaker converts the voice signal into the vibration signal and transmit the vibration signal via the bone medium, the risk that the message is eavesdropped can be reduced, and the user privacy is protected.

The embodiment of the invention relates to the technical field of wearable equipment, and discloses a control method for switching a playing mode of wearable equipment and the wearable equipment. The method comprises the steps of detecting the arm action of an arm wearing the wearable equipment; performing matching recognition on the arm action with a plurality of preset actions; if the condition that arm action is matched with the first preset action is recognized, switching the sound playing mode of the warble equipment to a loudspeaker mode; if the condition that the arm action is matched with the second preset action is recognized, switching the sound playing mode of the wearable equipment to a bone conduction mode, wherein the bone conduction mode is used for converting an audio signal into a vibration signal and transmitting the signal via a bone medium. With the application of the method and the equipment provided by the embodiment of the invention, an eavesdropping risk when sound plays is reduced, and thus user privacy is improved; and usage experience of the wearable equipment is also improved.

The present invention relates to the field of data control, and particularly to a data table storage method, a data table modification method, a data query method and a data statistical method. The data table storage method comprises: splitting a data table according to the type of the data table such that the split data tables cannot express the meaning of the original data table; and storing the split data tables to predetermined positions. According to the data table storage method provided by the present invention, through splitting fields in the original data table, a plurality of new data tables are generated, so that a single new data table cannot express the meaning of the original data table; and the splitting manner of each kind of the fields is unique, so that even if a new data table is acquired by others, the original data table cannot be restored according to the new data table, and thus content in the original data table will not be revealed, thereby ensuring security of the content in the data table and thus solving deficiencies in the prior art.

The invention discloses an intelligent toilet pad. A heating plate is arranged above a toilet base; a clean sleeve is arranged above the heating plate; a control box 1 is arranged at the connection part of the toilet base and the toilet cover and is connected with an automatic clean sleeve replacing mechanism by a connecting piece; the control box is provided with a heating controller, a odor removal controller and a fragrance releasing controller; and an inductive switch is arranged above the control box. The intelligent toilet pad can realize full intellectualization, automatic heating at constant temperature, automatic replacement of the clean sleeve, automatic release of fragrance, and automatic odor removal and sterilization.

The invention discloses a private key distribution method and device, a private key decryption method and device, equipment and a medium. In the embodiment of the invention, after a private key is generated, the private key is split into at least two sub-private keys, and a target sub-private key in the at least two sub-private keys is sent to first equipment, so that different sub-private keys are stored in different pieces of equipment, even if one equipment is invaded, the private key cannot be leaked, and the information security is ensured.

The invention provides an oxidized graphene-metallic fullerene compound. The oxidized graphene-metallic fullerene compound comprises oxidized graphene and metallic fullerene. The metallic fullerene is loaded to the surface of the oxidized graphene under pi-pi interaction. The invention further provides a method for preparing the oxidized graphene-metallic fullerene compound and application of the oxidized graphene-metallic fullerene compound as a magnetic resonance imaging contrast agent. The oxidized graphene-metallic fullerene compound, the method and the application have the advantages that the metallic fullerene is loaded on the surface of the oxidized graphene in a pi-pi interaction mode, the method is simple, complicated surface modification effects can be omitted, and the oxidized graphene-metallic fullerene compound is excellent in water solubility, stability, biocompatibility and relaxation property and is quite suitable to be used as the MRI (magnetic resonance imaging) contrast agent.

The embodiment of the invention relates to the technical field of wearable equipment, and discloses a wearable equipment call reminding method and wearable equipment. The method comprises the steps that when the wearable equipment plays the call reminder of a call by using a loudspeaker mode, whether the wearable equipment receives a play mode switching instruction is detected; if the wearable equipment receives the play mode switching instruction, the playing mode of the wearable equipment is switched to a bone conduction mode from the loudspeaker mode; and using the loudspeaker mode to play the call reminder of the call is stopped, and real-time voice signals used for playing call information of the call are converted into vibration signals by using the bone conduction mode and the vibration signals are transmitted through the bone medium. With application of the wearable equipment call reminding method and the wearable equipment, the user is enabled to timely know the call information of the call to avoid missing the call, and the risk of interception of the call information can also be reduced so as to achieve the effect of protecting the privacy of the user.

The invention relates to the technical field of temporary blocking gel for an oil-gas field, and provides temporary blocking gel for a low-pressure oil-gas well and a preparation method thereof. The temporary blocking gel for a low-pressure oil-gas well comprises the following raw materials in percentage by weight: 0.25-0.35% of polyacrylamide, 0.2-0.25% of oxidizer, 0.2-0.3% of reducer, 0.1-0.3% of gel breaker and the balance of water. The preparation method comprises the following steps: after swelling, adding the oxidizer, the reducer and the gel breaker; and further stirring to obtain the temporary blocking gel for a low-pressure oil-gas well. The temporary blocking gel provided by the invention is low in cost, simple to prepare, safe and convenient in construction and wide in application range; after gel forming, the temporary blocking gel is high in strength favorable in blocking effect, and can not cause leakage of kill fluid; after gel forming, the temporary blocking gel is favorable in viscosity and high in strength, simultaneously prevents blocking agent from entering a non-target layer, and can not cause pollution to an oil layer; and after gel breaking, the temporary blocking gel can realize clean and thorough flowback, can not cause safety accidents, and can not pollute the oil layer, thereby providing a guarantee for implementation of further work.

The invention discloses a method and system for achieving private protection of electronic devices based on a WIFI hotspot. The method comprises that when a user needs to access the private content of a first electronic device, the first electronic device receives a first authentication message input by the user, the first authentication message is sent to a second electronic device through WIFI, and the second electronic device compares the first authentication message with an authentication secret key prestored in the second electronic device for authentication; the second electronic device receives a second authentication message input by the user, the second authentication message is sent to the first electronic device through WIFI, and the first electronic device compares the second authentication message with an authentication secret key prestored in the first electronic device for authentication; when the first authentication message and the second authentication message both pass the authentication, the private content of the first electronic device is opened. Through the above way, the safety of the private content in the electronic device can be effectively ensured, and the user can have better personal experience.

The invention relates to a sealing technology in the production of a storage battery, and concretely relates to a sealing method of the storage battery. The sealing method comprises the following steps: 1, preparing two components of a sealing gum according to a case that the two components comprises a component A and a component B, the component A comprises, by weight, 12-18 parts of a 501 diluent and 52-68 parts of a bisphenol A epoxy resin, and the component B comprises, by weight, 20-32 parts of a flexible epoxy resin and 40-50 parts of a composite amine epoxy hardener; 2, preparing the sealing gum by mixing the component A with the component B according to a weigh part ratio of 100:(40-50); 3, heating the sealing gum to make the sealing gum flow; 4, squeezing the sealing gum into a gum slot of a cell slot until that the height of the sealing gum is 0.3-0.6mm higher than the height of the gum slot; 5, checking that whether there are pores in the sealing gum, whether positions of an anode and a cathode are correct and stationary, and whether the anode and the cathode extend out of a cover bottom; and 6, covering with a battery cover, and continuously laying aside for 12-15h to make the sealing gum be complete dryness. The sealing method of the invention solves problems of the difficult guaranteeing of sealing performances of the storage battery and an acid leakage phenomenon of a terminal, wherein the problems exist in present technologies.

The invention relates to a scroll compressor. The scroll compressor comprises a static vortex plate and a movable vortex plate. The static vortex plate comprises a first central head section and a first central inner arc-shaped section. The movable vortex plate comprises a second central head section and a second central inner arc-shaped section. In a gradual open process of a suction cavity, scroll wraps of the static vortex plate between a medium pressure cavity and the suction cavity and those of the movable vortex plate form gaps, and the scroll wraps of the static vortex plate and the scroll wraps of the movable vortex plate between the exhaust cavity and the medium pressure cavity are engaged; in a gradual close process of the suction cavity, the first central head section and the second central inner arc-shaped section form a gap, the second central head section and the first central inner arc-shaped section form a gap, and the scroll wraps of the static vortex plate and the scroll wraps of the movable vortex plate between the exhaust cavity and the medium pressure cavity are engaged. The invention also provides a correcting method of a scroll wrap molded line of the scrollcompressor. According to the scroll compressor and the correcting method of the scroll wrap molded line thereof, the compression effect of the scroll compressor is relatively good.

Disclosed is an automatic adaptation-connection device for an oil-conveying pipeline. The automatic adaptation-connection device comprises the oil-conveying pipeline and an adaptation-connection device; the oil-conveying pipeline is a professional marine oil-conveying pipeline; the oil-conveying pipeline is connected with an inlet-outlet valve; separated oil-conveying pipes are connected to form the oil-conveying pipeline; sealing devices are arranged between the separated oil-conveying pipes; the oil-conveying pipeline is connected with the adaptation-connection device which is a hydraulic control adaptation-connection device; the inside of the oil-conveying pipeline is connected with a hydraulic pump; hydraulic remote-controlled valves are additionally arranged in the positions of an inlet and outlet of the hydraulic pump, and the inlet and outlet are in series connection. The hydraulic remote-controlled valves in an oil supply system of a refueling ship are used for control, so that operation by the crew is simple; the inlet and outlet are in series connection so that other pump ways can be automatically prepared for standby application when any pump breaks down, and normal oil supply for client ships is guaranteed; in consideration of the situation that during hydraulic control, hydraulic oil is extremely prone to be affected by temperature, a temperature control device and a viscosity testing device are arranged in a control pipeline so that viscosity of the hydraulic oil can be controlled whenever possible.

An embodiment of the invention discloses a rotary-valve control method of a food processor. A Rotary valve of the food processor comprises an upper rotary valve body and a lower rotary valve body, the upper rotary valve body is in charge of pipeline switching between a cup and a water inlet, a sealing port, a pulp discharge port and an additional port, and the lower rotary valve body is in charge of switching between the pulp discharge port and a wastewater box; the method includes: detecting current states of the food processor, wherein the current states include the standby state and the working state; controlling motion direction and motion range of the rotary valve according to the current location of the rotary valve of the food processor in the standby state and the working state respectively. By the arrangement, the optimum motion path can be automatically judged according to pulping conditions, safe and reliable switching of pipelines is guaranteed, motion time of the rotary valve is shortened, and pulping circle is shortened.

The invention discloses a water absorbent for paper and a preparation method thereof. The water absorbent for paper is prepared from the following components in parts by weight: 30-50 parts of sodium polyacrylate, 20-30 parts of sodium alga acid, 30-50 parts of hydroxyethyl cellulose, 20-35 parts of resin copolymers, 5-10 parts of polyacrylamide, 10-15 parts of pentaerythritol, 10-15 parts of glycidol and 0.5-2 parts of sodium carbonate. The prepared water absorbent can be applied to the field of papermaking, and the paper prepared with the water absorbent can have a good synergistic effect with a cationic wet strength agent when having good hygroscopic property and a high water-retention rate. Thus, the dry strength and the wet strength of the paper can be enhanced.

The invention discloses an elbow used for a second time throttling of an air conditioner, belonging to an air conditioner component provided with a capillary structure used for leading to changes of flow channel sections so as to change a heat transmission state. The second time throttling elbow of the invention adopts a round copper material bent into a U shape. A plurality of parallel capillary-shaped through holes are arranged in the U-shaped material. The length of all the through holes is equal to that of the prior capillary structure. The outer diameter of the U-shaped copper material is equal to that of a connecting tube. The second time throttling elbow of the invention is arranged on the side of an evaporator. Compared with the original capillary structure, the invention has a small-volume elbow with the same appearance as the connecting tube, a bigger weight and a simple structure, is shaped by one time, and can save space and lead to convenient manufacturing process without cold medium leakage and noise.

The invention discloses a lithium iron secondary battery comprising a shell and an electrode polar group contained in the shell. A center pin is arranged in the electrode polar group. The center pin is gel with a miniature multi-hole structure, which causes the electrolyte to enter the gel with a miniature multi-hole structure, and when the gel absorbs the electrolyte, a horizontal force is generated to press the electrode polar group due to the expanding of the solution. The invention also discloses a method for manufacturing the lithium iron secondary battery. The invention is in favor of solving the problems of the existed non-uniformity of the electrolyte and solution-leakage in the process of charge and discharge of the cylinder lithium iron battery.

The invention discloses hemoglobin oxygen carrier-PEG-PLGA encapsulated hemoglobin. The PEG-PLGA encapsulated hemoglobin is obtained by encapsulating the hemoglobin with polyethylene glycol-poly(lactide-co-glycolide) (PEG-PLGA) nanoparticles. The hemoglobin is uniform in particle size distribution, good in dispersibility and high in oxygen appetency and has good oxygen supply effect and can be used for the system with general or partial anoxia or the system needing in vitro oxygen supply. The hemoglobin oxygen carrier-PEG-PLGA encapsulated hemoglobin plays an important role in the medical field when serving as a blood substitute and has a broad application prospect.

The invention discloses a storage battery cover and a storage battery provided with the storage battery cover. The storage battery cover comprises a cover body and exhaust structures arranged on the cover body, wherein multiple transversely arrayed slots are formed in the cover body; each exhaust structure is arranged in each slot; a circular ring-shaped guide slot with a notch and a labyrinth type guide slot are further formed in each slot; each circular ring-shaped guide slot is close to an upper side wall plate of each slot; the exhaust structures are located in the circular ring-shaped guide slots; the labyrinth type guide slots are connected and communicated with the notches of the circular ring-shaped guide slots. According to the storage battery cover and the storage battery, acid lost from the storage battery can flow back into the storage battery, so as to guarantee the acid content and moisture in electrolyte of the storage battery and prolong the service life of the storage battery.

A semiconductor device includes a semiconductor platform on a dielectric layer; a gate stack formed on the semiconductor platform; and an insulating spacer formed around the semiconductor platform and filling an undercut area at the edge of the semiconductor platform.