A.1+2+3+5 B.1+3+5 C.1+2+3+4 D.1+2+4+5
A.Intake stroke B.Compression stroke C.Exhaust stroke D.Pumping stroke
A.出油阀 B.柱塞 C.出油阀与柱塞两者之一 D.出油阀与柱塞两者
A.搭口间隙 B.轴向间隙 C.径向自由活动性 D.工作温度
A.PMS B.CMS C.SCM D.UMS
A.启动空气压力 B.启动空气消耗量 C.启动一次压缩空气瓶的压力降 D.启动转速
A.支风管 B.主风管 C.空调器分配室的隔离小室 D.B或C
A.compensate for major leaks in the system B.maintain the original fluid viscosity C.allow for changes in pressure and temperature within the system D.assure constant fluid temperature
A.reduce mean effective pressure B.decrease average compression pressure C.decrease air charge density D.increase power output