常見例句雙語例句By analysis of difficult points in underdrainage design at excavation section, the paper briefly introduces thinkings and methods for underdrainage design at excavation section.通過對(duì)挖方段暗排設(shè)計(jì)難點(diǎn)的分析,簡(jiǎn)要介紹挖方段暗排設(shè)計(jì)的思路及方法。 返回 underdrainage