介绍了国内建筑中主导给水塑料管管材的产品特性、生产应用、以及市场分析和发展前景。
The products property of water supply plastic pipe, production and application in domestic construction, market analysis and development prospect are introduced.
由于湿陷性黄土的特性，湿陷性黄土地区给水排水管道设计越来越引起人们的关注。
Foundation treatment, water proof measures, design principle and characteristic of feed water and drainage pipeline in collapsible loess area were introduced.
本文着重探讨当给水调节伐门开度变化时，伐门特性以及管路传输迟延对锅炉汽包水位动态特性的影响。
This paper focuses on effects of the valve characteristics and the transfer pipe delay on dynamic performance for boiler drum level, under varying valve opening of the feed water control valve.
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