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。
Many such amino acids have already been made by adding different chemical groups to the basic amino acid structure.
一本关于细胞结构和功能方面的专著竟拨出篇幅研讨化学的某些基本原理。
A book on the subject of the structure and function of cells should devote space to examining some of the basic principles of chemistry.
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。
The technological process and basic physical indexes of water soluble polyester sizing agent in experiment preparation are introduced. Its chemical structure characteristics are certified.
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