单词 | piston |
释义 | piston noun—活塞 n (almost always used)less common: 柱塞 n • 外管 n Examples:backwards and forwards action (e.g. of piston or pump)—往复运动 backwards and forwards (e.g. of piston or pump action)—往复 piston pump n —柱塞泵 n |
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