The paper introduces a method of calculating the time limit for tracklaying and bridge erecting engineering project, in which several factors are quantized.
本文介绍一种计算铺轨架桥工期的方法,将一些因素数量化,有一定参考价值。
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So the establishing of(horizontal) control datum with appropriate precision standards systematically is the precondition to make sure the precision of ballastless tracklaying.