“煤岩”用英语怎么说

“煤岩”的拼音为：méi yán...

煤 ( 岩 ) 试件剪切破坏过程的渐进性非常明显.The failure process of coal ( rock ) sample is gradually.研究了煤岩储层的应力敏感 、 水敏和速敏.The stress, water and velocity sensitivity of coal gas reservoir were studied.在煤岩的分类中,有腐殖煤和腐泥煤之分.Coal rock can be cla...