求翻译：城市中大量民用生活炉灶和采暖锅炉需要消耗大量煤炭，煤炭在燃烧过程中要释放大量的灰尘、二氧化硫、一氧化碳、等有害物质污染大气。特别是在冬季采暖时，往往使污染地区烟雾弥漫，呛得人咳嗽，这也是一种不容忽视的污染源。是什么意思？

A large number of civilian life in the city stoves and heating boilers need to consume large amounts of coal and coal in the combustion process to release large amounts of dust, sulfur dioxide, carbon monoxide, and other harmful substances polluting the atmosphere. Especially in winter when heating

A lot of civilian life in the cities stove and boiler for heating energy-intensive coal, the coal during combustion to release a significant number of dust, 2 sulfur dioxide, carbon monoxide, harmful substances such as pollution of the atmosphere. Particularly in winter when heating, tend to make sm

In the city the massive civil life fire pivot and the heating boiler need to consume the massive coals, the coal must release the massive dusts, the sulphur dioxide, the carbon monoxide, and so on in the combustion process the deleterious substance pollution atmosphere.Specially when winter heating,

A large number of civilian lives in the city-intensive coal stoves and heating boiler, coal combustion process to free up a lot of dust, sulfur dioxide, carbon monoxide, and other harmful substances polluting the atmosphere. Especially in winter when heating, usually prevent contaminated areas smogg

A large number of civilian lives in the city-intensive coal stoves and heating boiler, coal combustion process to free up a lot of dust, sulfur dioxide, carbon monoxide, and other harmful substances polluting the atmosphere. Especially in winter when heating, usually prevent contaminated areas smogg