Li's new process, by contrast, allows researchers to construct a single, simple "skeleton" peptide which can be modified into any other peptide needed with the addition of a simple reagent.

李的新方法，与此相反，可以让研究人员构建一个单一的简单的“骨架”肽，加入简单试剂后它可被修饰成其他任何需要的肽。

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At the same time, the addition reaction of organozinc reagent and ketones was investigated.

同时对有机锌试剂与酮的加成反应进行了研究。

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By using polydimethylsiloxane containing epoxy groups as base gum, the compounds containing amino groups as crosslinking reagent, a new addition type curable silicone rubber were prepared.

以含环氧基聚二甲基硅氧烷为基胶，以胺类化合物为固化交联剂进行了新型加成型硫化硅橡胶的研究。

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