海洋地壳 meaning in Chinese
oceanic crust
oceanic lithosphere
oceaniccrust
Examples
- All indications are that it is everywhere basaltic and relatively constant in composition .
所有的迹象只表明海洋地壳处都是玄武岩质的，组成也比较稳定。 - Owing to the difficulty of sampling beneath the deep oceans, the composition of the oceanic crust is not known with complete certainty .
由于在深海底下取样困难，海洋地壳的组成就不完全确知。 - This critical layer surrounds a solid inner core of nearly pure iron that underlies 2 , 900 kilometers of solid rock that form the massive mantle and the ultrathin crust of continents and ocean floors
这关键性的外核包覆著几乎是由纯铁所组成的固态内核，深埋在厚重的地函与极薄的大陆、海洋地壳之下，距离地表的深度约2900公里。