一个新的烟囱，替换了5年前那个又旧又高的，能更好地限制废气的排放。
A new smokestack, which is better able to trap emissions, replaced the older, taller one five years ago.
大气会成为我们主要的废气储存槽，是因为透过烟管、排气管与烟囱排放废气，做起来最简单，直觉上也最省钱。
The atmosphere has been our prime waste repository, because discharging exhaust up through smokestacks, tailpipes and chimneys is the simplest and least (immediately) costly thing to do.
当必须避免废气与装料接触时，这种炉子需更换一个后式烟囱。
The furnace can alternatively be supplied with a back exhaust when waste gas contact on charge material must be avoided.
采用把废气排到室外的水平排烟系统，您可节省安装完整烟囱管道的费用。
Adopting the direct vent system could emit smoke to outdoor, you can save the cost of the installation of pipeline integrity of the chimney.
采用上述结构的本发明烟囱废气余热利用装置，具有高效利用烟囱废气余热的特点；
The stack gas residual heat utilizing device of the invention adopting the structure has the characteristic of efficiently utilizing the stack gas residual heat;
工业烟囱排出的大量废气使城市的空气质量日益恶化。
Chimneys let a lot of exhaust gas with the modern industry develops quickly, and these exhaust gas makes the air deteriorate day and day in our cities.
工业烟囱排出的大量废气使城市的空气质量日益恶化。
Chimneys let a lot of exhaust gas with the modern industry develops quickly, and these exhaust gas makes the air deteriorate day and day in our cities.
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