primary gold ore

• 原生金矿

primary gold ore的用法和样例：

例句

1. Primary gold ore from Bangi, Guizhou, belongs to a clastic-type, finely disseminated, refractory particles.It is difficult to extract gold from the ore by cyanide infusing.
   贵州板其原生金矿石属碎屑岩类微细浸染型难选冶矿石，在氰化浸出之前需进行预处理。
2. Experiments of roasting the carbonaceous primary gold ore that connot be treated with flotation and the affecting factors of iodide leaching glod are intrduced in this paper.
   文章详细介绍了不适合浮选处理的含碳原生金矿焙烧试验和碘化浸出时各影响因素试验。