桥孔 meaning in Chinese

bridge opening; aperture of bridge

It is 1939 meter long , and 7 . 32 meter wide
计有32座桥墩， 31个桥孔。
On the basis of the analyse of built continuous rigid - frame bridge ratio of span , according to the concept of engineering economy , while only to think about cost , the paper gains to choice rational ratio of span formula
以既有pc连续刚构桥孔跨比分析为基础，以工程经济为基本理论，提出了经济跨径的计算方法。
Abstract : according to investigation data of designing for bridge opening in china , in this paper the equations for estimating length of bridge opening have been established . the equations can be the reference for revising “ norm of investigation and design of highway engineering on hydrology ”
文摘:根据两次全国公路大中桥孔径设计资料的调查，对桥孔长度进行了全面分析，为《公路工程水文勘测设计规范》制定桥长公式提供参考