A smokestack belches smoke over Beijing, where residents have been warned to stay indoors as the city's pollution index hit its highest level amid the worst conditions since coal-fired power plants kicked into gear for winter.

一座北京的煙囪正在冒著濃濃的黑煙。自從燃煤電廠(chǎng)今冬送暖以來(lái)，北京市的污染指數(shù)達(dá)到了最?lèi)毫拥某潭取＞用駛儽痪娲粼诩抑胁灰獬觥?/p>

The paper gives a point-source pollution example of deleterious gas—SO2 and NO2 sluiced by a smokestack in a factory,collects observation concentration of SO2 and NO2,based on GIS and gauss math-model,researches the diffuseness pattern in the special weather-condition,realizes the visualization of deleterious gas—SO2 and NO2 diffuseness,probes a new way and method for natural environment evaluation.

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Fire box for the reception and combustion of fuel ; the steam pipes for the carriage of steam ; the wheels for locomotion; the smokestack for throwing off waste.

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The locomotive is composed of special parts : the fire box for the reception and combustion of fuel ; the steam pipes for the carriage of steam ; the wheels for locomotion; the smokestack for throwing off waste.

火車(chē)頭是由特殊部件構(gòu)成的：接受燃燒燃料的爐膛www.日韩三级在线，運(yùn)送蒸汽的管道，是車(chē)頭運(yùn)行的輪子及排出廢氣的煙囪无码在线首页第一页在线。

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