Puzzledom in developing mineral resources, advantages and application status of microbial metallurgy are elaborated. Research status and direction of biotechnology in hydrometallurgy is discussed.
阐述了矿产资源开发领域的困境、微生物冶金技术的优点和应用现状，介绍了生物技术在湿法冶金领域的研究状况和研究趋势。
Based on the analysis of the failure mode, this paper put forward the measure for fault protection and pointed out the research direction for developing the reliability of turbine sealing oil system.
通过对失效模式的分析，提出了减少密封油系统故障的有效措施，指出了提高密封油系统可靠性的研究方向。
It indicates that multifunction and green revolution are the research keystone and major direction of developing new type water treatment chemicals.
指出一剂多能和绿色化是开发新型水处理化学品的研究重点和主要方向。
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