但剑桥能源咨询公司认为，如果是以“从油井到车轮”的方式，只计算汽车排气管排出的二氧化碳量，从油砂中提取石油只增加了5 ~ 15%的排放量。
But from "well to wheels", counting emissions from cars' exhaust pipes, tar sands are only 5-15% dirtier, says IHS CERA.
主要介绍了采用3C1B涂装工艺保险杠喷涂线的废气排放量及排气筒高度计算分析。
The paper mainly introduces the emission of waste gas and height of exhaust funnel of 3C1B coating line for auto bumper.
用排气后处理方法来降低柴油机有害排放量已成为一个重要的研究方向。
To reduce the noxious emissions from diesel engines through aftertreatment has been accounted as an important trend in methodological development.
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