Physical, chemical and biological control methods in the purifying water process and the secondary water supply system in Chinese water supply industry are discussed.
重点介绍了目前国内供水行业所采用物理、化学以及生物的方法在水厂净水处理及二次供水过程防除摇蚊污染的研究；
Apart from the secondary water supply systems, the drainage systems and the air-raid shelters, no significant difference was found in the positive rates between the central area and the marginal area.
除二次供水、市政排水设施和防空洞外，中心城区与边缘城区蚊孳生阳性率无明显差别。
This will save water, energy and secondary water pollution control and other aspects of water supply and drainage design in the environment.
本文将从节水、节能和二次供水的污染防治等几个方面探讨建筑给排水设计中的环保问题。
Since the device is sealed in the constant pressure water supply, Entirely keep the water quality sanitation tagging, Because do not contact with air, Avoid secondary pollution and vandalism.
由于该设备是密闭的恒压供水，完全保持了水源的水质卫生标注，由于不与空气接触，避免二次污染和人为破坏。
Objective To know the inspection status and regulation effect of secondary water supply in Xiamen City.
目的了解厦门市二次供水水质监测状况和二次供水专项整治效果。
The utility model relates to a water storage device, particularly a water storage tank suitable for secondary water supply.
本实用新型涉及一种贮水设备，尤其适于二次供水的贮水箱。
Improving the efficiency of flushing of barometric pulse method, it has the important theoretical and practical significance to reduce secondary pollution in water supply network.
提高气压脉冲法的冲洗效率，对减少管网水质的二次污染有重要的理论和实际意义。
Methods The quality of secondary water supply was analyzed and evaluated in Xiamen City from 1991 to 2006.
方法应用1991 - 2006年厦门市二次供水水质监测结果进行分析评价。
For water supply system, the direct and secondary economic losses in earthquake are discussed. All kinds of influent factors on economic losses are introduced.
讨论了给水管网系统震灾的直接经济损失和引发经济损失，分析了影响各类经济损失的因素。
The geographical information management system of water supply network for Xianhu housing district in Nanning is built up by the secondary development of the common GIS software.
对通用GIS软件进行二次开发建立南宁市仙葫住宅区供水管网地理信息管理系统。
The geographical information management system of water supply network for Xianhu housing district in Nanning is built up by the secondary development of the common GIS software.
对通用GIS软件进行二次开发建立南宁市仙葫住宅区供水管网地理信息管理系统。
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