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。

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Rest of airframe welded steel tube, with pilot and fixed fin at rear and engine and fuel tank at front, resting on two pontoons of rubberized fabric.

其余机身焊接钢管，与飞行员，在后方，发动机和燃料箱固定鳍在前面，胶布的两个浮筒休息。

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In addition, a hot, burned gas generated from the shock tube was used as pilot flame for igniting the premixed and preheated supersonic hydrocarbon-air mixture generated in the shock tunnel.

此外，由燃烧驱动激波管产生的高温燃气作为引导火焰点燃激波风洞产生的预混与预热的超声速碳氢燃料——空气混合物。

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