In China, the Yanshanian is the most important period of metallizing process of gold, followed by the Variscan, Luliang-Jinningian, Wutainian and the Himalayan periods.
英
美
释义
而我国金矿床的成矿时代则以燕山期为最重要,吕梁-晋宁期和海西期次之,其馀为五台期和喜马拉雅期。
把海词放在桌面上,查词最方便
触屏版
|
电脑版
©2003 - 2025 海词词典(Dict.cn)
立即下载