The roof control design in mined field is the key to roof control and the movement rule of roof terrane is the basis of the roof control design.
英
美
释义
采场控顶设计是顶板管理的关键因素,而顶板岩层的运动规律是采场控顶设计的依据。
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