piston [ˈpɪstən]
以下由轻松背单词网站提供
基本释义
n.活塞
英英释义
a short solid piece of metal which moves up and down inside a cylinder in an engine to press the fuel into a small space and to send the power produced by it to the wheels
参考例句
They use a piston engine instead. 他们改用活塞发动机。
The piston moves by steam pressure. 活塞在蒸汽压力下运动。
推荐阅读