1·There are gold, silver, iron, manganese, molybdenum, uranium, mica, vermiculite, quartz rock, feldspar, granite, marble, barite and mineral water, and so on.
主要有金、银、铁、锰、钼、铀、云母、蛭石、石英石、钾长石、花岗岩、大理石、重晶石和矿泉水等。
5·A systematic study on the adsorption properties of polymeric carbohydrate dextrin on barite and fluorite surface was carried out.
本工作系统地研究了聚合碳水化合物——糊精在重晶石和萤石表面的吸附特性。