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The electric wire of the socket is not long enough and it's not easy to sort out.
With the use of traditional magnets and ropes, this problem can be solved easily.
East China University of Science and Technology
Shanghai, China
Bei Dianhui,
East China University of Science and Technology
Bi Lei,
East China University of Science and Technology
Chen Xue,
East China University of Science and Technology
Xu Shuangshuang,
East China University of Science and Technology