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Public places that people do not conserve water! Money is also important for people, and only insert coins to water, people will run out of water, take the money, so water will not flow, it is effective to avoid the waste of water!

University

Hubei University Of Automotive Technology

Hubei University Of Automotive Technology
shiyan, China

Design

Hubei University Of Automotive Technology

Hubei University Of Automotive Technology
shiyan, China

Guangming Chen, Qinghai Chen, Juan Zuo, Shaohua Han