通过测量拱腹各点坐标来确定双曲拱桥每孔的拱轴线。
According to measuring the coordinates of each span of long span double arched bridge, the arch axis for every span is determined.
通过水泥板每孔灌浆量以及与其他孔连通情况，对几种脱空检测方法进行了验证。
Several void detective methods of the cement concrete pavement are verified by grouting quantity.
一月至五月是少雨的前季风时期，孔布山谷平均每五天中就有一天笼罩在厚厚的棕色烟云下。
In the rainless pre-monsoon months between January and May, about one day in five saw the Khumbu valley blanketed in a dense brown cloud.
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