短語詞組短語overlying g strata 表層;覆層;上覆地層overlying rock strata 上覆巖層overlying disrupted strata by extraction 采動(dòng)覆巖overlying rock strata in stope 采場(chǎng)上覆巖層overlying strata movement 覆巖移動(dòng)overlying strata failure 覆巖破壞grout into overlying strata 覆巖注漿movement of overlying strata 上覆巖層運(yùn)動(dòng)mining overlying strata 采動(dòng)覆巖 返回 overlying strata