低 温换热段肋片形状和肋片上的均压孔有利于烟气均匀流动和冷凝液的排除；
The shape of the rib of low-temperature heat transfer section and balanced holes on the rib are beneficial to homogeneous flow of flue gas and discharging of condensed fluid.
针对航空发动机篦齿盘均压孔上产生的表面裂纹，采用基于工业视频内窥镜的孔探技术对其进行自动视觉检测。
An inspection approach to surface cracks of the aperture on an aeroengine labyrinth disc is studied based on the industrial videoscope in this paper.
避免大口径管道采用均速管测量非洁净流体时，取压孔被堵塞问题。
The method avoids that hole of taking pressure is blocked by used average-velocity tube to measure unpurged one phase fluid in the big pipe.
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