water mains are hard to inspect, particularly if they are underground.

供水主管道特别是地下管线很难监测。

if an appliance is intended to be permanently connected to the water mains and not connected by a hose-set, this shall be stated.

对器具永久连接到水源并且不用软管组件连接应进行说明。

at about 8.30am on saturday october 15th, close to the city’s former meatpacking district, one of chicago’s ancient water mains burst.

10月15日周六上午8:30左右，位于芝加哥前肉类加工厂附近一个老化的自来水总管道破裂，「水漫金山」。

new water mains switch effect, they are practical, at the end of you!

一款水管开关效果，挺实用的，大家来看看吧！

power line were down, water mains have been damaged.

电力系统瘫痪，水管被破坏。

with the city water mains cracked, for a while there was not enough water.

这里的自来水管道破裂， 白花花的水沖涌而出。

water networks designed by water system integration technology with internal water mains have rather good flexibility.

具有中间水道的水集成技术所设计的用水网络有良好的操作柔性。

know how to turn off your gas and water mains .

了解如何关闭煤气和水管。

hong kong has one of the largest water mains rehabilitation programmes in the world.

香港拥有世界最大的水管修复项目之一。

fires that started as a result of the quake raged through san francisco for three days. closely-built wooden homes and broken water mains made it difficult to fight the fires.

因地震而引起的火灾，在旧金山市区延烧了三天，而盖的很接近的木造屋及破损的自来水干管，更使得减火工作困难重重；