gassy seam
[矿业] 瓦斯煤层
常用释义
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美式发音
基本释义
- [矿业] 瓦斯煤层
例句
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1·Under gassy coal seam condition, the full-heading development is employed. Because of the fast heading a high rate of gas emission arises.在瓦斯含量较大的煤层采用综掘掘进巷道，由于掘进速度快，出现了瓦斯涌出量过大的现象。
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2·Gas drainage in high gassy coal seam with low gas permeability is always an hard solved significant technology problem in the process of safety production.高瓦斯低透性煤层的瓦斯抽放，一直是煤矿安全生产过程中的重大技术难题。
同义词