The dynamic analyses of block and tackle hoist
滑轮组系统动力学仿真
The ropes were tensioned using block and tackle.
绳子通过滑轮拉紧。
A demonstrative experiment disclosing the essence of block and tackle
揭示滑轮本质的演示实验
I finally hoisted him up with a block and tackle.
我最终用滑轮组把他拉了上去。
A block and tackle is needed to lift that heavy machine.
要吊起那么重的机器需要使用一个滑轮组。
It has to be tall because it is like a giant block and tackle
井架必须很高, 因为它像一个巨型滑轮组。
Hoisting mechanism including electric motor, brake, reduction gear, reel and block and tackle.
起升机构包括电动机，制动器，减速器，卷筒和滑轮组。
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