本煤层抽采瓦斯
Gas is extracted from this coal seam
以上为机器翻译结果,长、整句建议使用 人工翻译 。
由于松软煤层的瓦斯含气量高而透气性又极差,一直是本煤层瓦斯抽采的难点和重点。
As the soft coal seam is high gas content and low permeability. it has been difficult and key for the coal seam gas extraction.
youdao
应用推荐
模块上移
模块下移
不移动