By means of the improved electrostatic three-center model of diatomic bonds and its expressions for physical quantities, the relations between effective bond charge density, bond-stretching force constant and characteristic frequency are fitted.
本文应用修正的双原子键三中心静电模型及其有关物理参量表达式，拟合了有效键电荷稠度与键的力常数和特征频率之间的关系；建立了偶极矩、核四极矩偶合常数中的场梯度及晶体非线性光学系数的近似理论表达式。
In the complex these atoms are each bound to one central atom and not to each other.
在络合物中，这些原子都和中心原子成键，而彼此不成键。
Atomic Bonding and Mechanical Properties of an Al-Mg-Zr-Sc Alloy
Al-Mg-Sc-Zr合金的原子成键和力学性能
Both ionic and covalent bonds arise from the tendency of atoms to attain this stable configuration of electrons.
离子键和共价键都是由于原子要达到这个稳定电子构型而形成的。
Zwitterions Mediated Carbon-Carbon and Carbon-Heteroatom Bond-Forming Reactions;
两性离子参与的碳—碳和碳—杂原子键形成反应
The Study of Lewis-acid-catalyzed Reactions for the Formation of Carbon-carbon and Carbon-heteroatom Bonds;
Lewis酸催化的碳碳键及碳杂原子键的形成反应的研究
Synthesis and Adsorption Property of Polymeric Adsorbents with Hydrogen-Bonding Acceptors Containing Oxygen Atoms;
含氧原子氢键受体吸附树脂的合成及吸附性能
The Effect of Atomic Parameters on Bond Charaacter of AB-type Crystal;
原子参数对AB型晶体成键特征影响的研究
Electronic structure and bonding mechanism of La-Ir-Si:A first-principles study
镧铱硅电子结构与成键机理的第一性原理研究
Donding of interfaces atoms in epitaxial growth of ZnSe thin films on Si(001) substrate
Si(001)外延ZnSe薄膜界面原子的结合与成键
Application of quantum mechanics to atomic structure, molecular bonding, and spectroscopy gives us quantum chemistry.
将量子力学应用于原子结构，分子键及光谱学即形成量子化学。
The bond in which the linkage pair of electrons are providedby one of the bonding atoms.
一个键合原子用以联结一对电子的键。
Let us consider the implication of the electrostatic theorem for chemical bonding in diatomic molecules.
让我们讨论双原子分子化学成键所蕴含的静电定理。
" Ligand： Atom, group (see functional group), or molecule attached to a central atom, usually of a transition element, in a coordination or complex compound."
配位体:与一个中心原子相连的原子或分子，通常是过渡元素，形成共价键化合物或复合离子。
Every carbon atom has four bonds.
每个碳原子的价键为四。
Covalent bond A chemical bond in which one or more pairs of electrons are shared between two atoms.
共价键：一般指两个原子接合时，通过形成共有电子对而产生的化学键。
One atom of oxygen is linked to the nitrogen atom by a double bond.
一个氧原子以双键与氮原子相连。
Surface Laser Finishing Key Technology of Plasma Deposition Direct Manufacturing Metal Prototype;
等离子熔积直接成形金属原型表面激光光整关键技术
a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains to electron to form a negative ion.
一个原子失掉一个电子来形成一个正离子，另一个原子得到一个电子来形成一个负离子的化学键。