2results about How to "Even weight distribution" patented technology

The utility model relates to a kind of double pump head water pump and vehicle, including impeller, motor assembly, pivot and shell, cavity is provided in shell, impeller, motor assembly and pivot are all set in cavity, impeller has two, motor assembly is set between two impellers, pivot penetrates impeller and motor assembly;Motor assembly includes the stator made of printed circuit board.This water pump connects motor assembly between two impellers, two impellers share a motor assembly, reduce the volume of water pump, and motor uses the stator made of printed circuit board, printed circuit board stator uses lightweight material and by printed circuit technology copper wire is directly printed on circuit board, with the characteristics of low cost, small size, light weight, so relative to traditional motor can reduce water pump volume and weight, reduce cost.

This invention provides a method for controlling Spartina alterniflora and promoting natural mangrove restoration based on rolling mulching and in-situ mud slurry, belonging to the field of ecological control technology. The method involves mechanically rolling Spartina alterniflora to flatten most of it and press it into the tidal flat soil. Then, a biodegradable mulch film is laid on top, and mud slurry is extracted and applied to form a mud slurry cover layer. A mangrove seed interception and planting device is then installed on the mud slurry cover layer to prevent mangrove seeds from growing naturally, thereby reducing the cost of Spartina alterniflora control and improving the efficiency of Spartina alterniflora control.