1.滑轮组；滑车组a piece of equipment for lifting heavy objects, which works by a system of ropes and pulleys (= small wheels around which the ropes are stretched)
Block and tackle: Combination of pulleys with a rope or Cable, commonly used to augment pulling force.
滑轮和滑车组：带绳索和缆绳的滑轮组，通常用于增大拉力。
Raised, lowered, or positioned equipment, tools, and materials for installation or use using hoist, handline , or block and tackle.
用吊车、手线或滑轮组及辘轳，将要装置或使用的设备、工具，及材料，升高、降低或放好位置。
The other boats are still equipped with block and tackle systems, which are much less efficient.
其他帆船还在使用效率较低的滑轮系统。
These block and tackle skills will serve you well.
这些技巧都能帮你做得更好。
It has to be tall because it is like a giant block and tackle and we have to lower into the ground
井架必须很高，因为它像一个巨型滑轮组。我们必须把很长的钻杆一节节地钻入地下，
A demonstrative experiment disclosing the essence of block and tackle
揭示滑轮本质的演示实验
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