中英互译

lower mantle

基本释义

下地幔：地球内部的一层，约占地球总体积的56%，位于地球表以下660至2900公里的区域。下地幔的压力和温度范围广泛，主要成分包括镁橄榄石、铁方镁石和硅酸钙钙钛矿。下地幔的研究对于了解地球内部结构和地球动力学过程至关重要。

This paper deals with the advance in study of the composition, geochemistry and deep seated fluids of lower mantle.
主要论述深部地幔的组成、地球化学及深部流体研究的进展。
Like the CORE of earth, the mantle can also be divided into two concentric layers, the lower mantle and the upper mantle.
就像地球的核部一样。地幔也可分为两个同心圆圈层，下地幔和上地幔。
The east China continent located over the heat source of the lower mantle was uplifted, broken and drifted toward the ocean.
位于下地幔源热区之上的中国东部大陆，发生隆起、破裂、向洋漂移。