不连续 bùliánxù discontinuous Origin Definitions Defs Strokes Stroke Words Sentences Sents 不连续面 bùliánxùmiàn discontinuity surface of discontinuity莫霍洛维奇不连续面 Mòhuòluòwéiqíbùliánxùmiàn Moho the Mohorovičić discontinuity, the boundary between the Earth's crust and the mantle