piston 的英语意思
pistonpiston /ˈpɪstən/ noun [countable] 
查看全部语言翻译 a part of an engine consisting of a short solid piece of metal inside a tube, which moves up and down to make the other parts of the engine move活塞；发动机的组成部件，为嵌于圆筒内的短圆柱形金属块，通过上下运动带动发动机其他部件运转
查看全部语言翻译 a part of an engine consisting of a short solid piece of metal inside a tube, which moves up and down to make the other parts of the engine move活塞；发动机的组成部件，为嵌于圆筒内的短圆柱形金属块，通过上下运动带动发动机其他部件运转