趣英语 / pulleys造句

pulleys造句

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.

Levers and pulleys are simple machines.
杠杆和滑轮是简单机械.

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

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