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Terms for subject United Nations containing 的空气 | all forms | in specified order only
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1979年远距离越境空气污染公约关于持久性有机污染物的议定书Protocol to the 1979 Convention on Long-Range Transboundary Air Pollution on Persistent Organic Pollutants
更稀的空气燃油比leaner air-fuel ratio
欧洲监测和评价空气污染物远距离传送情况合作方案的监测方案长期筹资议定书Protocol on Long-term Financing of the EMEP Monitoring Programme
空气中的排放物airborne emissions
空气污染物的分解decay of air pollutants

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