primary zone短语⁷⁰⁶²² 基本例句 一次燃烧室,原生带 Meanwhile a basis on prognosis of ore deposit is also proposed by using the method that the orebody is divided to oxidized zone, mixed zone and primary zone at the Huanggoushan gold deposit. 在荒沟山金矿研究中，利用这种方法将矿体划分为氧化带、混合带和原生带，为矿床预测提供了依据。 chemyq