名词
中文翻译：烟雾浓度
同义词：
['smoke density', 'smoke concentration']
例句：
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1.The factory is located in a densely populated area, which can lead to high smoke concentrations.
这家工厂位于人口密集的地区，这可能导致烟雾浓度很高。
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2. To reduce the risk of fire, it's important to maintain a low smoke concentration indoors.
为了减少火灾的风险，室内保持低烟雾浓度是很重要的。
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3. The city has implemented strict regulations to control the smoke concentration during the peak hours.
该市实施了严格的规定，以控制高峰时段的烟雾浓度。