Vocab Bloom Hub

pulley-block

/ˈpʊl.i blɒk/

翻译: 一种简单机械,由一个带槽的轮子构成,绳索或缆绳可沿槽滑动,用来改变力的方向或作用点。

1 个条目

noun

/ˈpʊl.i blɒk/C1formaltechnical
  • zh一种简单机械,由一个带槽的轮子构成,绳索或缆绳可沿槽滑动,用来改变力的方向或作用点。
  1. B2formaltechnical

    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.

    zh滑轮组

    • The workers used a pulley-block to lift the heavy steel beams.
    • A pulley-block system can reduce the amount of force needed to move an object.
    • He rigged a pulley-block to hoist the sail on the boat.

    同义词pulley

词形
  • pulley-blocks plural form
  • pulley-blocks' possessive plural form
  • pulley-block's possessive singular form