英语词汇“活塞阀键”的翻译、意思、用法、释义-英汉汉英词典

单词	活塞阀键
释义	活塞阀键n.piston【音】(铜管乐器上的)活塞阀键(亦作 piston valve)； (风琴上的)活塞按键(亦作 piston knob)phr.piston valve【音】（铜管乐器上的）活塞阀键
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