浮选操作法用于佛罗里达磷矿和科拉磷矿.Flotation is used for Florida and Kola rock.浮选是从液体中分离出低密度固体物或液态颗粒.Flotation is a process for separating low density solids or liquid particles from a liquid phase.介绍浮选机矿浆液位控制系统及其工业试验过程.Expounds liquid ...
The number of under-sixteens in low-paid jobs is increasing.16岁以下从事低收入工作的人数正在增加。PARTIES Expenses for birthday parties and Sweet Sixteens aren't to exceed $ 2 million.生日聚会和少女16岁生日聚会的开销不得超过200万美元....
Articles which are not objects of trade, such as cremains, human remains etc.其他不属于贸易范围之货物, 例如骨灰 、 体等.Yeah, but now it appears a new way: using the cremains a diamond.是的, 但是现在出现一种新方式: 用骨灰造钻石....