 |
| English | Chinese |
| cut-off diameter | 波导管临界直径 |
| worked-out open cut A mine where all the mineral that could be profitably exploited has been removed | 露天空矿 (所有的可被利用开采的矿产已被清除的一种矿井。) |
|
| English | Chinese |
| cut-off diameter | 波导管临界直径 |
| worked-out open cut A mine where all the mineral that could be profitably exploited has been removed | 露天空矿 (所有的可被利用开采的矿产已被清除的一种矿井。) |