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全自动节能黑板的设计 / Design about automatical energ

全自动节能黑板的设计
全自动节能黑板的设计

The design changes the old way of cleaning the blackboard.Using the design,the blackboard can move,which saves the manpower,time and so on.Many stand-pipes in the new blackboard which can reserve some water to soak the wiper and clean the blackboard more clean.And we can not tear down the wiper but we can change it.

University

Beihua University

Beihua University
Jilin, China

University

Beihua University

Beihua University
Jilin, China

Design

Beihua University

Beihua University
Jilin, China

Hou Yin Yin