coal reserves
短语词组
- coal and reserves control 煤炭储量管理
- Coal mine reserves management 煤矿储量管理
- prepared coal reserves 准备煤量
- coal reserves seams 煤储层
- theoretical coal reserves 煤的理论储量
- coal reserves management 煤炭储量管理
- world coal reserves 世界煤储量
- proved coal reserves 探明煤炭储量
- coal reserves calculation 储量计算 返回 coal reserves