Therefore, the CMB is the beginning and the end of whole mantle convection.

因此，地幔底层既是全地幔对流的起点，又是全地幔对流的终点。

youdao

Therefore, the CMB is the beginning and the end of whole mantle convection.

因此，地幔底层既是全地幔对流的起点，又是全地幔对流的终点。

youdao