We also have a comprehensive study for galena, sphalerite technology features, which provide a scientific basis for effectively increase the recovery of lead and zinc.
并对方铅矿、闪锌矿的工艺特征进行了全面研究，这一研究成果为有效地提高铅、锌的回收率提供了科学依据。
The themes of documents are mainly concentrated in the 3 aspects of comprehensive study, experimental research and technology and measures.
文献主题主要集中在综合研究、试验研究、技术与措施3个方面。
Comprehensive study concluded that it is feasible for reversed polymer water instead of tap water on technology, environmental protection and economy.
综合研究的结论为：用保聚水代替自来水作为配制母液用水在技术、环保和经济上都可行。
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