Petrolum

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1.

The relationship of Reducing Sugar Content , Petrolum Ether Extract Content and account of Aroma and Flavor have a good relativity .

还原糖、石油醚提取物和烟叶的香吃味得分三者存在很好的相关性。

huán yuán táng 、 shí yóu mí tí qǔ wù hé yān yè de xiāng chī wèi dé fēn sān zhě cún zài hěn hǎo de xiāng guān xìng 。

3.