释义 |
pulley-block 英'pʊliːbl'ɒk美'pʊliːbl'ɒk 基本英英近义反义 滑轮组,滑车组,手拉吊挂
Noun: 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近义词 block街区pulley滑车pulley block滑轮组 |