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
double-acting positive displacement compressor
flow positive feed-back
positive displacement blower
positive displacement compressor
positive displacement drill
positive displacement flowmeter
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
single-lobe positive displacement motor
alignment horizontal displacement meter
Automatic displacement meter
Displacement Meter
位移计
位移流量计
排量测计
多点位移计
排量计
容积式流量计
短周期地震计
horizontal displacement meter
inductance type displacement meter
Multipoint displacement meter
multi-point displacement meter
rotary displacement meter
vertical displacement meter