pulleys是什么意思？

pulleys

• n. 滑轮（组），滑车( pulley的名词复数 )，皮带轮；

例句

• Block and tackle: Combination of pulleys with 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.
• Among them were rickshaw pulleys, peddlers, policemen and servants. 这些人有的拉车,有的做小买卖, 有的当巡警,有的当仆人.
• a system of ropes and pulleys 绳索滑轮系统
• Levers and pulleys are simple machines. 杠杆和滑轮是简单机械.

柯林斯高阶英汉双解学习词典释义

• N-COUNT
  滑轮；皮带轮
  A pulley is a device consisting of a wheel over which a rope or chain is pulled in order to lift heavy objects.
  例句
  The weights are moved via a cable and pulley system. 重物通过缆绳和滑轮系统运送。

行业词典

• 体育： 重锤拉力器；