环状过氧化物作为一类具有生物活性的天然产物的结构单位，其合成方法的研究对于这类天然产物的合成具有重要的指导作用。
Synthetic studies on cyclic peroxide which constitutes active structure unit in some natural substances are of great importance to the total synthesis.
组成蛋白质的基本单位是氨基酸，氨基酸是构建生物机体的众多生物活性大分子之一，是构建细胞、修复组织的基础材料。
The basic unit are composed of protein amino acids. As one of the many bioactive macromolecules of the body, amino acids are building cells, the basic materials for repair organizations.
组成蛋白质的基本单位是氨基酸，氨基酸是构建生物机体的众多生物活性大分子之一，是构建细胞、修复组织的基础材料。
The basic unit are composed of protein amino acids. As one of the many bioactive macromolecules of the body, amino acids are building cells, the basic materials for repair organizations.
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