·2,447,543篇论文数据，部分数据来源于NoteExpress
The coal transmutative degree and variational rule of coal seam physical character are different in the prospection for CBM. The situation restricted CBM industrialization in China.
煤层气勘探中存在着煤变质程度差异性大和储层物性变化规律差异大的特点，这些特点直接制约着我国煤层气产业化的进程。
youdao
应用推荐
模块上移
模块下移
不移动