1.Nolanda sands contain 70%～ 80% fayalite mineral component and is a rare mineral resource in natural world.
诺砂中含有70%～80%榄石矿物成分,是自然界中罕见矿产资源。
2.The results showed thatbecause of the formation of fayalite and hercynite during the reduction，it was more difficultfor the metallic phase to nucleate.
榄石矿物成分,是自然界中罕见
榄石
：
例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其表达内容亦不代表本软件
观点；若发现问题，欢迎向我们指正。
，由于还
过程中生成了
