热门关键字:

    Permeability classification of coal seams in China[J]

    时间:2013-03-14 23:44来源:未知 作者:admin点击:200次
    ------分隔线----------------------------

    Zhao Yangsheng,Kang Tianhe,Hu Yaoqing.Permeability classification of coal seams in China[J]. Int. J. Rock Mech.Min.Sci.,1995(4)

    ------分隔线----------------------------