In deep open-pit mine the gutter works for a new level is the emphasis and difficulty.The working schedule and quality are influenced by the blasting effect.
英
美
释义
深凹露天采场中,新水平掘沟工程是采矿生产的重点、难点,爆破效果的好坏又直接影响掘沟工程的进度和质量。
把海词放在桌面上,查词最方便
触屏版
|
电脑版
©2003 - 2024 海词词典(Dict.cn)
立即下载