... source of noise 噪声源 source of particulate matter 颗粒物质来源 source of power 电源，能源，动力源 ...
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source of atmospheric particulate matter 大气颗粒物来源
·2,447,543篇论文数据，部分数据来源于NoteExpress
In the developed world, the greatest source of particulate matter is from diesel engines.
CNN: Air pollution kills, but deaths can be prevented
This will allow truckers to reduce emissions significantly (diesel emissions include nitrous oxides, particulate matter, and other air toxics and they are a major source of pollution in some areas).
FORBES: Acceleration of the Natural Gas Highway
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