二期开挖 meaning in English
second-stage excavation
Examples
- The high rock slope of permanent shiplock is important part of the three gorges project . this article analysed comprehensively the engineering geology condition , deformation and stability of the high rock slope
以三峡永久船闸高边坡工程为研究背景，结合前期勘测和一、二期开挖施工实际，综合分析了永久船闸工程地质条件、边坡变形及稳定性等。