urban atmosphere是什么意思 urban atmosphere怎么读
urban atmosphere的用法和样例
- The air pollution in the urban area is still serious.
城市大气污染仍然较重。 - The systemic research of toxic organic compounds and organic molecular tracers are significantly important for treatment and control of urban air pollution.
开展有毒有害有机物及不同污染源有机示踪化合物的系统研究，对城市大气污染的治理具有重要的意义。
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