词汇 | piston |
释义 | piston /`pɪstṇ/ n. A small, solid cylinder of metal or wood, fitting exactly and moving up and down in a tube, such as the barrel of a pump, or the cylinder of an engine. 【机】活塞。 Sliding value in a wind instrument that changes the itch. 【乐】(改变管乐器音调的)瓣。 idoms piston engine 活塞引擎。 piston ring 活塞环。 piston rod 活塞杆。 |
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