host occurrence of silver

• 银的赋存状态

host occurrence of silver的用法和样例：

例句

1. The occurrences of vanadium are mainly in adsorption and isomorphism states.
   钒的赋存状态主要有吸附态和类质同象态。
2. Occurrences of organic matter in Paleogene argillaceous rock of Jiyang depression are primarily studied by means of fluorescent microscopy.
   应用荧光显微镜法，首次对济阳坳陷下第三系泥质岩中有机质的赋存状态进行了研究。