plasma mantle的用法和樣例：
例句
- The volcanic rocks of Yanshan Period have features of the mantle source.
燕山期火山岩具備幔源特徵。 - Hence peridotite modes can be used to reflect efficiently mantle melting and melt extraction processes beneath ocean ridges only if the excess olivine is removed appropriately.
為此，只要把深海橄欖岩中過量的橄欖石剔除后，其實際礦物組分就能有效地反映洋脊下地幔熔融作用和熔融萃取過程。
