联合开采 [
lián hé kāi cǎi]
combine mining method
- 日本拒绝中国提出的关于联合开采争议岛屿附近油气田的建议。
TOKYO, Japan (AP) -- Japan has turned down a Chinese proposal to jointly develop gas fields near the disputed Senkaku islands, a top Japanese official has said. - 根据分析的结果评价了临界距离老空水下薄煤层联合开采的安全性。
Hereby the safety of the combined mining of thin seams under the close gob water was evaluated. - 葛店煤矿联合开采的煤层间距仅有2.1m,下采面滞后上采面的距离选择至关重要。
The distance of the two combined mining coal seams is only 2.1m in Gedian Coal Mine.
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