potable water supply

基本解释

Double Check Detector Assembly shall be installed on fire protection systems when connected to a potable water supply.
这种双止回阀检测总成应该安装在与饮用水管道连接的消防系统上。
Double Check Valve Assembly shall be installed at referenced cross-connections to prevent the backflow of polluted water into the potable water supply.
在相关的交叉连接处应该安装一个双止回阀总成，以防止受到污染的水回流到饮用水系统中。
A Double Check Valve Assembly shall be installed at each noted location to prevent the unwanted reversal of polluted water into the potable water supply.
双止回阀总成应该安装在每个值得注意的位置，用于防止污水出现不需要的回流而流进饮用水供应系统中。