secondary resources recovery

基本解释

Since the nature resources in our country are limited, so the recovery from secondary resources becomes more and more important.
但我国铂族金属资源有限，因此，从二次资源中回收显得越来越重要。
Solvent extraction technique has been widely used in the recovery of platinum metals from secondary resources due to its strong extraction and separation ability.
溶剂萃取技术作为一种有效的提取分离方法在铂族金属二次资源的回收中得到广泛重视。
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.
资源回采率要求、安全条件要求、经济效益要求和资源复采是实施地下转露天开采的原因；
www.jsks.net.cn