Many such amino acids have already been made by adding different chemical groups to the basic amino acid structure.
现在许多的这样的氨基酸都可以通过在基本氨基酸结构上添加化学集团来合成。
The technological process and basic physical indexes of water soluble polyester sizing agent in experiment preparation are introduced. Its chemical structure characteristics are certified.
介绍了试验室制备水溶性聚酯浆料的工艺过程及其基本物理指标，并验证了其化学结构特征。
In the meantime, based on the basic model, the chemical structure factors which influence the pressure index are discussed.
同时，从基本模型出发，讨论了影响推进剂燃速压力指数的化学结构因素。
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