Still, the sheer volume of pollutants, including benzene, means they pose a real risk – of worse symptoms and even death – to asthmatics and those with chronic obstructive pulmonary disease.

但是，大量的污染物质（包括苯）注定会对哮喘患者以及那些患有慢性阻塞性肺病患者构成真正的风险——使症状恶化，甚至导致死亡。

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Cigarette fumes contain more than 60 chemicals, including arsenic and benzene that encourage tumor.

香烟烟雾中今有60多种化学物质，其中包括砷和苯，这都会导致肿瘤的产生。

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The effects of the three dewaxing solvents, including low benzene content, medium benzene content and no benzene, were compared by test data. The advantages of MIBK solvent was demonstrated.

并以试验室数据，对低苯量、中苯量、无苯三种脱蜡溶剂的脱蜡效果进行比较，论证了MIBK溶剂的优越性。

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The effects of the three dewaxing solvents, including low benzene content, medium benzene content and no benzene, were compared by test data. The advantages of MIBK solvent was demonstrated.

并以试验室数据，对低苯量、中苯量、无苯三种脱蜡溶剂的脱蜡效果进行比较，论证了MIBK溶剂的优越性。

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