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单词 piston
释义
piston
pɪstən ˈpɪstən
Word forms: plural pistons
N-COUNT 活塞 A piston is a cylinder or metal disc that is part of an engine. Pistons slide up and down inside tubes and cause various parts of the engine to move. 活塞
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更新时间:2024/10/22 23:47:58