桥孔，读音是qiáo kǒng，汉语词汇，解释为桥身下的用于流水通过的孔或洞。
... aperture of a mirror 反射镜的口径 aperture of bridge 桥孔 aperture of frontal sinus 额窦口 ...
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对比结果表明，桥孔比圆孔更有利气流的径向扩散。
The results show that improved hole is more advantageous to the radial mixing of gas stream.
简述桥孔设计的原则和方法，并谈了河道整治的体会。
This paper indicates the principle and method of laying aperture of bridge and introducer the practical experiment on river rectification.
应用量纲分析原理和回归分析的方法，提出了各类河段桥孔长度的计算公式。
Using the principle of dimensional analysis and the method of regression analysis, the formulas of determining the length of bridge opening were obtained.
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