... 岩性标志：lithologic criteria 岩性变化：lithological change 岩性百分比图：lithic percentage map ...
基于58个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
Lithological characteristics of the seam roof are one of factors, which lead gas content to change partially.
煤层顶板岩性特征是影响瓦斯含量产生局部变化的因素之一。
youdao
应用推荐
模块上移
模块下移
不移动