短語詞組短語black graptolite shale 黑色筆石頁巖black muddy shale 黑色泥質(zhì)頁巖Eureka black shale 尤里卡黑頁巖Clip Black Shale 夾黑色頁巖sulfide containing black shale 硫化物黑色頁巖black shale formations 黑色頁巖建造Niutitang black shale 牛蹄塘組黑色巖系marine black shale 海相黑色頁巖 返回 black shale