孔口 meaning in English

[设计] porthole; ostiole; orifices

Under extreme conditions of rapid coke forming materials, pore mouth blockage can occur .
在快速形成焦炭材料的极端情况下，孔口会发生堵塞。
Effect of scratch on fatigue life of fasten holes
孔口划痕对紧固孔疲劳寿命的影响
Engine nacelle fire extinguisher apertures and doors
发动机整流罩灭火器孔口和口盖
Three - dimensional nonlinear analysis of orifice of high arch dam
混凝土高拱坝孔口三维非线性分析
Stress analysis in variation state at crack tip and notch crown tip
椭圆孔口端点和裂纹端点处的变动态应力分析

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