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本文通过对全国84家卷烟厂使用丙二醇的情况进行的调研，分析比较了丙二醇及其代用品的作用，指出丙二醇在我国烟草行业的应用还有很大的潜力。
This article investigates the use of propylene glycol in 84 cigarette factories throughout the country, analyzes and compares the effects of propylene glycol and its substitutes, and points out that there is still great potential for the application of propylene glycol in the tobacco industry in China.