secondary resources recovery

基本解釋

Since the nature resources in our country are limited, so the recovery from secondary resources becomes more and more important.
但我國鉑族金屬資源有限，因此，從二次資源中回收顯得越來越重要。
Solvent extraction technique has been widely used in the recovery of platinum metals from secondary resources due to its strong extraction and separation ability.
溶劑萃取技術(shù)作為一種有效的提取分離方法在鉑族金屬二次資源的回收中得到廣泛重視。
The factors of resource recovery ratio, operation safety, and economic benefits and the secondary recovery of resources are the reason for transferring from underground into open pit mining.
資源回采率要求、安全條件要求、經(jīng)濟效益要求和資源復(fù)采是實施地下轉(zhuǎn)露天開采的原因；
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