goaf造句
2024年05月24日 11:53:34
There are many factors influencing spontaneous combustion in
goaf and their relative essentialities are different.
采空区自然发火的影响因素很多,各因素之间的相对重要性不同.
The coal spontaneous combustion in the
goaf is one of the main coal disasters.
采空区煤炭自燃火灾一直是我国煤矿的主要灾害之一.
The method of gas drainagecoal seam gas drainage , near coal gas drainage , and
goaf gas drainage.
瓦斯抽放的方法有本煤层抽放 、 邻近层抽放和采空区抽放.
And above 90 % spontaneous combustion occurs in
goaf.
其中90%以上自然发火发生在采空区.