单词 | piston |
释义 | piston['pistən]n. 活塞, 活塞阀键【医】 活塞(如注射器的) piston pis.ton AHD: [p¹s“t…n] D.J. [6p!st*n]K.K. [6p!st*n]n.(名词)1. A solid cylinder or disk that fits snugly into a larger cylinder and moves under fluid pressure, as in a reciprocating engine, or displaces or compresses fluids, as in pumps and compressors.活塞:一种可装到更大的筒里且在液压下移动的固体小筒或碟子,如在往复式发动机中,也可用于更换或压缩液体,如在水泵和压缩机上2. Music A valve mechanism in brass instruments for altering the pitch.【音乐】 活塞阀键:一种铜管乐器上调节音量的活塞阀键语源:1. French 法语 2. from Italian pistone, pestone [large pestle] 源自 意大利语 pistone, pestone [大杵] 3. from pestare [to pound, crush] 源自 pestare [捣,弄碎] 4. from Late Latin pist³re 源自 后期拉丁语 pist³re 5. frequentative of Latin p&9{ºnsere, p&9{º}ns³re} 拉丁语 p&9{ºnsere的重复, p&9{º}ns³re} |
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