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