Much of the complex would naturally be filled with scorching water, were it not for industrial pumps that facilitate the mining of silver, zinc, lead, and other minerals in the caves.
洞穴中大多充满灼热的水,因而给利用工业泵在其中进行银、锌、铅等矿物的开采增加了难度。
A new hydrometallurgical process for complex concentrate ore containing copper, zinc and silver was introduced.
介绍了一种处理复杂铜锌银精矿的新工艺。
It detailedly introduced mechanisms of body odor generation, product forms, and two special deodorants-zinc oxide-cellulose complex and silver-exchanged zeolite.
对体臭产生的机理、产品的类型以及两种具体的除臭剂—氧化锌-纤维素的复合体和银离子-交换沸石作了详细介绍。
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