Air flow measurement of utility boilers is often liken by using venturi duct, latticed wing, multiple pilot tube and double venturi tube.
电站锅炉的通风量，主要用风道型文丘里、机翼、笛型管及双文丘里进行测量。
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。
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