Technique of Filling Roof-Collapsed Roadway with Material with High Water Content in Fully-Mechanized Top-Coal Caving Faces

英美

释义

- 综采放顶煤工作面高冒空巷充填技术

把海词放在桌面上，查词最方便

触屏版| 电脑版

©2003 - 2025 海词词典(Dict.cn)

立即下载