piston
[ˈpɪstən]
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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
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| 参考例句:
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- 1. They use a piston engine instead. 他们改用活塞发动机。
- 2. The piston moves by steam pressure. 活塞在蒸汽压力下运动。
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