| 释义 |
DEFINITIVE EXAMPLES 权威例句〔camshaft〕An engine shaft fitted with a cam or cams.凸轮轴:与一个或多个凸轮相配的机器轴美国传统〔poppet valve〕An intake or exhaust valve, operated by springs and cams, that plugs and unplugs its opening by axial motion.提升阀:由弹簧及凸轮操纵的一吸气或排气阀,通过往复式运动打开或关闭阀门美国传统 |