coal reserves
短语词组
- coal and reserves control 煤炭儲量琯理
- Coal mine reserves management 煤鑛儲量琯理
- prepared coal reserves 準備煤量
- coal reserves seams 煤儲層
- theoretical coal reserves 煤的理論儲量
- coal reserves management 煤炭儲量琯理
- world coal reserves 世界煤儲量
- proved coal reserves 探明煤炭儲量
- coal reserves calculation 儲量計算 返回 coal reserves