1·Covalent catalysis involves the substrate forming a transient covalent bond with residues in the active site or with a cofactor.
共价催化涉及底物与活性位点中的残基或与辅因子形成瞬时共价键。
2·They say homonuclear. So this is purely covalent.
而是用的同核，嗯，这是完全共价的。
3·Histone is the core of chromatin, and covalent modification of histone tails have fundamental roles in regulation of gene expression.
组蛋白是染色质的核心，其尾部共价修饰在基因表达调控中有重要作用。
4·The two main methods of the connection between QDs and biological molecules are covalent coupling and electrostatic adsorption.
量子点与生物大分子的连接方式主要有共价耦联结合和静电吸附作用两种。
5·The strong covalent bonds along the fiber's length give them a very high modulus in this direction because to break or extend the fiber the bonds must also be broken or moved.
沿着纤维长度有很强结合力的共价结合在这个方向上给予复合材料很高的模量，因为要损坏或拉伸纤维就必须破坏或移除这种结合。