tackle block

基本解释

I finally hoisted him up with a block and tackle.
我最终用滑轮组把他吊了上去。
This paper puts forward some methods of solving mechanical efficiency of tackle-block, hoping to help students break through difficulties.
本文就有关滑轮组机械效率的解题提出一些解决方法，有助于帮助学生突破难点。
The drilling line is reeled over the crown block and traveling block to gain mechanical advantage in a "block and tackle" or "pulley" fashion.
钻井用钢丝绳通过天车和游动滑车以滑轮组的形式获得机械上效益。
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