Coalbed methane(CBM)is an important type of unconventional gas.Commercial development of CBM in America has been very su......

计算机对褶皱的处理能力的强弱,是决定地质图切剖面计算机辅助编绘系统实用价值大小的一个重要指标.以兰姆赛分类方案为基础,通过......