Regarding the extremely thin coal bed coal and the gas prominentpossibility analysis, in formerly practiced was a blank, therefore inthe production process knew and took the degree to be insufficient.

对于极薄煤层煤与瓦斯的突出可能性分析，在以往实践中是个空白，所以在生产过程中认识和重视程度不够。

youdao

Regarding the extremely thin coal bed coal and the gas prominentpossibility analysis, in formerly practiced was a blank, therefore inthe production process knew and took the degree to be insufficient.

对于极薄煤层煤与瓦斯的突出可能性分析，在以往实践中是个空白，所以在生产过程中认识和重视程度不够。

youdao