positive rotary pump 正旋转式泵 ; 反转展转容积泵
positive displacement solenoid pump 容积式电磁泵
positive rotary pump coupling 回转容积泵联轴器
SANITARY POSITIVE DISPLACEMENT PUMP 有益健康的容积式泵浦 ; 卫生正排量泵 ; 卫生容积式泵
positive displace pump 变容泵排液泵
positive displacement type pump 正排量泵
Besidess remembering positive memories, there are a whole bunch of things you can do to pump up your emotional state temporarily.
除了记住一些积极的记忆，还有一些其他的事情你可以尝试去做，暂时的激励自己的情绪。
Double screw pump as a positive displacement pump, the pump suction chamber should be closely separated and discharge chamber inside.
双螺杆泵作为一种容积式泵，泵内吸入室应与排出室严密地隔开。
The invention is an efficient positive vortex pump, which belongs to fluid machinery.
本发明是一种高效的正旋涡泵，属于流体机械。
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