... seven public nuisances 七种公害[水质污染，空气污染，土壤污染、噪声，振动，地基沉陷，恶臭] sewage 污[下]水；污物 sewage disposal 污水处理；污水排除 sewage gas 沼气 Sewage pipe 污水管 ...
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sewage gas engine 沼气发动机
Air-sewage gas-liquid two-phase flow 空气
Sewage sludge gas 污水污泥气体
sewage e gas 沼气
gas field sewage 气田污水
gas-producing sewage 造气污水
N gas given off in the digestion of sewage consisting of approximately 66 per cent methane and 34 per cent carbon dioxide 沼气
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。
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。
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。
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