强风化带中的回采巷道，围岩裂隙增多、强度降低，巷道的最大尺寸将受到限制。
The surrounding rock of the entry in strongly weathered zone has more fissures which lower the rock strength, and the maximum roadway dimension will be limited consequently.
概略介绍了四川省红层丘陵区的区域水文地质条件、风化带裂隙水的主要赋存环境、图像处理与制作方法；全面介绍了遥感解译和遥感信息计算机自动提取的方法。
Regional hydrogeology, occurring conditions of fissure water in weathered zone, remote sensing image treatment and mapping technique in red beds hills, Sichuan are outlined.
概略介绍了四川省红层丘陵区的区域水文地质条件、风化带裂隙水的主要赋存环境、图像处理与制作方法；全面介绍了遥感解译和遥感信息计算机自动提取的方法。
Regional hydrogeology, occurring conditions of fissure water in weathered zone, remote sensing image treatment and mapping technique in red beds hills, Sichuan are outlined.
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