tectonic epochs meaning in English
构造期
Examples
- In order to find new pegmatite nb - ta ore - deposit , it is very important practical - significances to ascertain the host structure characteristics and the relations between the tectonic epochs and ore - forming
通过查明矿床的容矿构造特征以及构造期次与成矿的关系，对寻找新的铌钽伟晶岩矿床具有重要的实践意义。