Study of Testing on Ground Pressure in Mining of Difficultly-mined Broken Orebody

英美

释义

- 破碎难采矿体开采地压的测试研究

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