wheel and axle

wheel and axle [hwi:l ænd ˈæksəl]  [hwil ənd ˈæksəl] 

wheel and axle 基本解释
轮轴;轮轴式起重器;
wheel and axle 英英释义

noun

1. hoist so arranged that a rope unwinding from a wheel is wound onto a cylindrical drum or shaft coaxial with the wheel

以上为单词解释
学习应用类查询