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Coal Mining
| Institute
| of
| America
| coal mining | |
| environ. | 煤矿业; 煤矿开采 |
| expl. | 采煤 |
| Institute | |
| IMF. | 基金学院 |
| institute | |
| hydroel.st. | 学会; 学院; 研究所 |
| manag. | 讨论会 |
| of | |
| gen. | 的 |
| Americas | |
| environ. | 美洲 |
| |||
| 煤矿业 | |||
| 采煤广义:指煤炭生产过程的全部工作。狭义:指从采煤工作面采出煤炭的工序 | |||
| 煤矿开采 | |||
| |||
| 煤矿开采 (挖掘煤炭以及将其准备投入市场的技术、机械工作。) | |||
| Coal Mining: 68 phrases in 11 subjects |
| Business | 2 |
| China | 7 |
| Earth sciences | 4 |
| Ecology | 2 |
| Economy | 1 |
| Exhibitions | 1 |
| Explosives and Explosive Ordnance Disposal | 20 |
| General | 1 |
| Geology | 1 |
| Rail transport | 2 |
| Technology | 27 |