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1·In recent years, sewage gas explosion occur in many Chinese cities.

近年来，我国大中型城市时常出现下水道爆炸事件。

2·One-third of the city was reported to be without electricity, with widespread damage to roads, water, sewage and gas infrastructure.

据报道城市三分之一的区域已停电，大面积的道路、自来水、下水道和燃气设施受到损毁。

3·Instead, as part of his job, he visits newly decorated apartments to inspect the heating systems, gas pipes, sewage systems, window glasses and even the air quality in rooms.

工作内容主要是对房屋进行查验，包括房屋的加热系统、煤气管道、污水处理系统、窗户玻璃，甚至还包括房屋的空气质量等等。

4·Rocket sewage This nitrous oxide-powered rocket thruster designed at Stanford can also be used in a sewage treatment plant to reduce greenhouse gas emissions.

火箭污水处理系统。这个由斯坦福大学研究设计的以氧化氮为动力的火箭推进器，也可用于污水处理工厂以减少温室气体排放。

5·Rocket Sewage This nitrous oxide-powered rocket thruster designed at Stanford can also be used in a sewage treatment plant to reduce greenhouse gas emissions. Stanford University.

火箭污水处理系统。这个由斯坦福大学研究设计的以氧化氮为动力的火箭推进器，也可用于污水处理工厂以减少温室气体排放。斯坦福大学。

6·Broken electrical, water, gas, and sewage lines that can result in injury or illness; and.

破损的电，水，气，污水管道能够导致受伤或患病；并且。

7·Roads, railways, water and gas mains, sewage pipes and electricity cables all move things around. So do the blood vessels of animals and the sap-carrying xylem and phloem of plants.

他的观点是，在某种程度上二者均由运输物质的网络构成——公路，铁路，水路以及煤气管，污水管还有电缆线都在输送物质，动物血管和植物运输汁液的木质部、韧皮部也是如此。

8·This can be, for example, in the form of sensors that provide real time information on traffic and road usage, water and sewage, electricity and gas consumption, weather, and more.

例如，使用一些传感器，获取交通道路状况、供水和排水、电力和燃气、天气等方面的信息。

9·Air pollution: thirty million tons of methane - a gas that contributes to global warning - comes from manure in sewage ponds or heaps.

空气污染三千万公吨的沼气一种助长全球温室效应的气体，便是来自于畜牧场的废水或堆肥。

10·The factories should reduce the discharge of sewage and gas.

工厂应减少污水和气体的排出。