Protect investors' legal rights and improve the investment return system for listed companies. Increase residents' income by diversifying investment channels.
优化上市公司投资者回报机制，保护投资者尤其是中小投资者合法权益，多渠道增加居民财产性收入。
The design and application of direct-return system water system of air-conditioning system, and the characteristics of self-balancing control valve are discussed.
本文介绍了异程空调水系统的设计、调试方法和在异程空调水系统中应用较多的自力式平衡阀的特性。
Based on the characteristics of heat and moisture loads in cleaning operation room, the non-reheated and fixed secondary air return system was analyzed in the situation that loading changes.
从二次回风空调系统的节能分析，正压控制，医疗建筑废热、废水的再利用，运行管理等方面探讨了减少洁净手术室空调系统能耗的途径和方法。
Based on the characteristics of heat and moisture loads in cleaning operation room, the non-reheated and fixed secondary air return system was analyzed in the situation that loading changes.
从二次回风空调系统的节能分析，正压控制，医疗建筑废热、废水的再利用，运行管理等方面探讨了减少洁净手术室空调系统能耗的途径和方法。
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