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- Polymers consist of long molecular chains of covalently bonded atoms. 高聚物都是由共价链联接原子而形成的长链分子所组成。
- The simplest covalently bonded molecule is formed from two hydrogen atoms. 最简单的共价键分子由两个氢原子组成。
- The atom that contributes no electrons to a covalent bond. 受体没有给共价键提供电子的原子。
- A covalent bond in which both electrons are provided by one of the atoms. 两个电子都由一个原子提供的共价键。
- A substance that provides a pair of electrons for a covalent bond with an acid. 共价化合物能够提供一对电子给一个酸形成共价键的化合物
- Both the IR and electrochemical experiments proved that tryptophan and MWNT covalently bonded with each other through amide bonds. 红外光谱和电化学实验均证实碳纳米管和色氨酸是通过酰胺键共价键合的。
- In covalent bonding, atoms share electrons. 在共价键联中，原子共有电子。
- Further study is needed before the origin of the covalent bond can be considered a settled question. 需进一步深入研究方能解决共价键的起源问题。
- Diethylstilbestrol(DES) is a kind of synthetic stilbene estrogen. In this article, DES was covalently bonded to BSA through carbodiimides after converted by succinate anhydride. 己烯雌酚(diethylstilbestrol,DES)为人工合成的二苯乙烯类雌性激素药。
- With the improved procedure, regio-nonselective ways could be adopted to prepare covalently bonded CSP, which showed an advantage for the rapid preparation. 在改进的方法中，可以以非选择性的方式来制备固定相，这有利于固定相的快速制备。
- To produce covalently bonded dehydroabietylamine derivatized cross linked polystyrene by macromolecular reaction.The synthetic method involves three steps. 运用高分子反应法,制备脱氢枞胺键合交联聚苯乙烯树脂。
- A molecule or ion that can combine with another by forming a covalent bond with two electrons of the other. 分子，离子可通过两个电子形成共价键而结合在一块的分子或离子
- Peroxide: Any of a class of chemical compounds in which two oxygen atoms are linked by a single covalent Bond . 过氧化物:任何由两个氧原子以单个共价键相互结合在一起的一类化合物。
- Among them, boric acid derivatives with fluorophore may selectively recognize saccharides or hydroxyl compounds through the formation of covalent bond. 糖化学在生命科学中起着非常重要的作用,因此对糖的识别和检测在医学、细胞生物学等领域具有至关重要的意义。
- A nonpolar covalent bond happens when both atoms have the same strength of electric attraction for the shared electrons. 当两个原子对共享电子的引力相同时形成非极性共价键。
- Chemical and Infrared analysis of purified samples shown that about 10% of total DBM was grafted onto LDPE backbone chain with covalent bond. 产品经二甲苯溶解，丙酮沉淀纯化数次后，由化学分析和红外鉴定表明，在挤出反应中确有40%25以上的DBM单体接枝到聚乙烯链上，接枝率可达到0．3DBM／100E。
- Tolbert and her colleagues found a way to harden these metals by introducing another element that covalently bonds to these layers, preventing them from slipping without disrupting incompressibility. 托伯特和同事发现一种提高这类金属硬度的方法，就是添加可与原子层共价结合的元素，防止原子层滑动，但不影响其抗压缩性。
- A polar covalent bond happens when one electron has a stronger electrical attraction for the shared electrons than the other atom(s). 当一个原子对共享电子的电吸引强于其它原子时，形成极性共价键。
- We developed an “ one pot” method that functionalizing the surface of carbon nanotubes by covalently bonding alkoxide .The functionalized carbon nanotubes can be dissolved in water. 我们发明了一种名为“一锅法”的碳纳米表面化学改性的方法，使得碳纳米管表面共价结合醇盐，这种改性的碳纳米管在水中有良好的溶解性能。
