The Derivation of Characteristics of the Venturi Tube with Oval Adjusting Valve
椭圆调径挡板文氏管调节特性曲线方程的推导
Ductmount kit with aspiration box, venturi tube and hardware.
导管安装套件，带蒸发盒，文氏管和硬件。
The feasibility was discussed for the use of Venturi tube and automatic exhaust valve for expelling air from siphon tube.
探讨了虹吸管利用文氏管及自动排气阀排气的可行性。
Measurement of Acid Gas Flow by Means of Inner Venturi Tube Flowmeter
用内文丘里管流量计测量酸气流量
Optimized method of steam flow measurement with inner venturi tube flowmeter
内文丘里管流量计测量蒸汽流量的优化法
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