液体活塞式转子真空泵
rotary vacuum pump with liquid piston
旋转活塞式压缩机
rolling piston compressor
静液压活塞式马达组件
hydrostatic piston link motor group
气体液压式弹簧
gas-hydraulic type spring
水压机液压机
hydraulicefficiency press
Hydropress
往复式活塞液体流量计
oscillating piston liquid meter
旋转式液体灌装机
rotary type liquid filling machine
液体活塞式鼓风机
liquid-piston rotary blower
数字气体活塞压力计
digital piston pressure gauge
整体式压气机叶轮
integrated compressor impeller
反压活塞式压力计
piston gauge with re-entrant cylinder column