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Chapter 521 Is your choice a little too conservative?
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Chapter 523 Applications of animal bionics
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... Its working principle is: fix one end of the hoisting wire rope to the hoist drum, and the other end goes around the sky wheel on the derrick to connect with the hoisting container."
"Using the different winding directions of the wire ropes on the two drums, when the hoist rotates, the two lifting containers are lifted up and down one by one to complete the lifting task."
Zhao Guoyang explained a few words, and Yuan Qinghua, a Ph.D. from the Department of Fluid Mechanics, as ...
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