流量标准星 flux standard

管式流量标定装置 pipe prover

流量标定 Flowmeter calibration ; Flow calibration ; flux calibrating

液体流量标准装置 Liquid flow calibration facility ; Standard Facilities for Liquid flow rate ; Flow Rate Standard of Measurement

流量标准 Flow standard

流量标记 flow label

水流量标准装置 Flowmenter Calibration Rig

流量标定曲线 [机] calibrational capacity curve

流量标准装置 Flow calibration facility