positive displacement pump
容积式泵
正排量泵
容积式真空泵
正排量式泵
排量式泵
正置换型泵
阳性金属
容积泵
double-acting positive displacement compressor
positive displacement blower
positive displacement compressor
positive displacement drill
Positive Displacement Flow Meter
positive displacement flowmeter
positive displacement meter
容积式流量计
正位移计
正排量计
正排量式容积测定仪
排量式泵
机率分布函数
single-lobe positive displacement motor
constant displacement pump
displacement type float
displacement type of fault
displacement type seismometer
double displacement pump
eyword: Variable displacement pump
fixed displacement pump