“piston valve”的概念、定义、翻译、参考文献-科学参考

单词	piston valve
释义	piston valve [`pis·tǝn ¦valv] ^{MECHANICAL ENGINEERING} A cylindrical type of steam engine slide valve for admission and exhaust of steam.
随便看	pitch ore pitchover pitch-row pitchstone pit furnace pith pi theorem pith knot pith ray pit limits pitman pitman arm pitometer pitometer log pitot pressure pitot tube pitot-tube anemometer pitot-venturi flow element pit-run gravel pit sampling pit slope pitted outwash plain pitted pebble pitticite Pittidae

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