韭菜的香气成分全部集中于所含精油中，确定其主要成分为二硫和三硫化合物等20种物质。
The essential oil contains all kinds of the aromatic substances in Allium tuberosum Rottl. ex Spr. Determined by GC-MS-DS, 20 compounds in essential oil are mainly disulfides and trisulfides.
第三章筛选出几种含硫化合物作为还原性降解剂，研究了它们对活性艳红m -3 BE的降解脱色效果。
Chapter 3: In the literature several types of sulfur compounds have been selected as reductive degradation agents on the degradation activity of Reactive Brilliant red M-3BE.
第三章筛选出几种含硫化合物作为还原性降解剂，研究了它们对活性艳红m -3 BE的降解脱色效果。
Chapter 3: In the literature several types of sulfur compounds have been selected as reductive degradation agents on the degradation activity of Reactive Brilliant red M-3BE.
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