Auxiliary teaching aid for teaching and learning of college English
An English teaching and university technology, applied in office supplies, writing utensils, printing, etc., can solve problems such as unreasonable blackboard eraser structure, unsuitable for university teaching, unclean wiping, etc., and achieves convenient drawing, good clamping effect, and structural reasonable effect
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[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] see Figure 1-4 , the present invention provides a technical solution: an auxiliary teaching aid for college English teaching, which includes a support column 1, a rotatable sleeve seat 2, a locking bolt 3, a connecting seat 4, an operating seat 5, an operating handle 6, a wiping assembly and scribed assembly, characterized in that,
[0028] Both ends of the support column 1 are provided with a wiping assembly and a marking assembly, and the wiping ass...
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