The greenhouse gas figure equates to 18% of man-made greenhouse gas emissions, largely thanks to the methane and nitrous oxide animals' "enteric fermentation".
2
其他的过滤器以及化学“捕捉器”负责处理能够引起酸雨的硫氧化物和氮氧化物。
Other filters and chemical "scrubbers" catch oxides of sulphur and nitrogen that would otherwise cause acid rain.
3
同时对吸收剂在微波连续加热下处理二氧化硫和氮氧化物进行了机理分析。
The mechanism of removing SO2 and NOx with absorbent by continuous microwave heating was analyzed.
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