容积式流量计
positive displacement meter
positive displacement flow meter
positive displacement flowmeter
positive displacement type flow meter
volume meter
volumetric flow meter
volumetric flowmeter
displacement meter
volumeter
旋转容积式流量计
rotary displacement meter
电容量计量
electrical capacity measurement
电容式质量流量计
capacitance mass flowmeter
流量－容积曲线
maximal expiratory flow-volume curve
容积计量检定
volume metering calibration
容积量计
volumetric flowmeter
positive displacement flowmeter
容量-流量调节器
volume-and-flow controller
液舱容积计量
liquid tank volume measurement
液舱容量计量
liquid cargo capacity metrology
最大呼气流量-容积曲线
Maximum expiratory flow-volume curve