These plates, some carrying continents, others the floors of ocean basins, 'float' on the semi--fluid asthenosphere below.

这些板块“漂浮”在下面的半流体软流圈上，有些板块承载着大陆，其他板块则承载着海洋盆地的底部。

The currents in the asthenosphere pull along the base of the lithosphere, moving the continents above.

软流圈中的洋流沿着岩石圈底部拉动，将上方的大陆移动。

The tremendous heat at the center of the Earth, compared to the less deep layers, can set up convection currents in the asthenosphere.

与较浅的地层相比，地球中心的巨大热量可以在软流圈中形成对流。