本文探讨了上海市在部分建筑内禁止使用镀锌管作给水管之后，使用什么管材这一问题。
The zinc galvanized steel pipe gone under a ban for some indoor water supply in Shanghai and its alternatives were discussed.
给水管道内的空气及其它不凝性气体会引起很多问题，如噪音、腐蚀、循环迟滞，甚至造成设备的暂时中断。
Air and other non-condensable gas inside the water pipe will cause a lot of problems, such as noise, corrosion, hysteresis loop, and even cause a temporary interruption of the device.
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