短語詞組短語Lower basaltic crust 下地殼玄武質(zhì)巖石delaminated lower continental crust 拆沉陸殼lower continental crust 大陸下地殼mid lower continental crust 大陸中the lower continental crust 大陸下地殼middle -lower continental crust 中pre -existing lower-crust structure 先存下地殼構(gòu)造the lower crust 下地殼continental lower crust 大陸下地殼 返回 lower crust