Associated minerals are mainly magnetite and ilmenite, subordinately pyrite and rarely chalcopyrite.主要伴生矿物为磁铁矿、钛铁矿, 少量黄铁矿和微量黄铜矿.Iron ores of greatest economic interest contain magnetite and hematite.最具有经济价值的铁矿包括磁铁矿和赤铁矿.T...
It is said that the magnetite was formed by a chemical process called thermal decomposition.据说这枚陨星是在热分解的化学过程中形成的。Iron ores of greatest economic interest contain magnetite and hematite.最具有经济价值的铁矿包括磁铁矿和赤铁矿.This is because ...
A single room at the Astir Hotel costs £56 a night.阿斯蒂尔酒店的单人间价格是56英镑一晚。The quiet mountain village suddenly became astir.寂静的山村,顿时沸腾起来.The whole town was astir with the news.因为这条消息而全城哄动....