pulley-block
参考词典中pulley-block的常规释义：
基本释义
- n.滑轮组
参考例句
- The lower part of a pulley block.
滑车组较低的一部分
- The lower part of a pulley block.
英英解释
1个名词解释
- a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope
[同] block, pulley, pulley-block
点击查看……- a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope
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