coal exploration
短語(yǔ)詞組
- coal resource exploration 煤炭資源勘探
- coal seam exploration type 煤層勘探類(lèi)型
- coal geological exploration industry 煤田地勘單位
- coal field exploration 煤田勘探
- coal geological exploration units 煤炭地勘單位
- Coal Seismic Exploration 煤田地震勘探
- coal geological exploration unit 煤炭地質(zhì)單位
- coal -exploration direction 找礦方向 返回 coal exploration