三原子的

In the same central heteroatom systems, the redox reactivity of the systems substituted by the trivalent metal is higher than the systems substituted by bivalent metal.

在中心原子相同的体系中，三价金属取代的体系比二价金属取代的体系氧化还原能力强。

For example, by molecular beam experiment, two or three pairs of atoms or molecules to form the so-called van der Waals molecular studies reveal a lot about the nature of the molecular force.

例如通过分子束实验，对两三个原子或分子形成的所谓范德瓦尔斯分子的研究，揭示了许多有关分子力的性质。

In chapter 3, we study monatomic chain with power-law long-range interactions and get non-propagating intrinsic localized mode in other wave-vector as well as that in the boundary of the phonon Brillouin zone.

第三章研究了长程关联作用下的单原子链中，不仅仅在Brillouin边界处存在非传播的内在局域模：而且 Brillouin边界之外也存在非传播的内在局域模。

In chapter 3, the angular distributions of SpE decay rate of a two-level atom placed in the multi-layered structure is investigated.

论文的第三章主要研究了由一维多层结构构成的微腔中二能级原子自发衰减的角分布。

For this purpose, the spontaneous decay from an excited state to a metastable state is considered when the excited and metastable states are resonantly coupled to an auxilia...

为此，提出如下方案：激发态和一个亚稳态分别通过一个激光场和一个微波场被共振耦合到一个辅助的亚稳态的A型三能级原子，考察自发辐射谱的性质。

This article is the third one of a series of reports on the automatio analysis of the Stereochemistry of protein.

这是关于蛋白质分子立体化学自动分析方法报道的第三篇，介绍自动分析原子环境的方法和应用于胰岛素结构所得到的一些结果。

The results show that the sulfonation degree of the final pmducts under the condition of temperature 80~90℃, pH≥11 and reaction time 80-90 min is higher than that under other conditions.

研究表明，在pH＞11.5，温度为80~90℃和合适的时间内可以获得高磺化程度的三聚氰胺磺酸盐；在摩尔比F/M=4.0和S/M=1.0的反应体系中，磺化可同时发生在仲氮和叔氮原子上，两种结构之比约为2：1。

The structure consists ofpolyborate groups 〓 and four crystallographically independent Y positions, ofwhich two positions are on inversion center and the other two are on general positions.

中的硼酸根离子为三个四面体构成的〓基团，结构中存在有四种不同的Y原子格位，其中两种Y格位具有中心对称，另外两种Y格位没有对称中心。

The effects of benzene, triethylamine, diethylamine and ethylene diamine on the shape, yield, N-dopping content and water-adsorption content of CN were discussed. CN materials with moderate N/C ratio (0.15) and high yield 2.2 g(gcat^(-1) were synthesized using diethylamine as the raw material.

比较了苯、三乙胺、二乙胺、乙二胺四种原料对合成CN形貌、产率、掺氮量和吸水率的影响；以二乙胺为原料合成出适中的氮碳比（N/C原子比为0.15）和较高产率2.2 g(gcat^(-1)的竹节状CN材料。

A brief review ofa few interatomic potentials and their merits can be found in chapter three.

在第三章中，主要介绍了目前人们常用的几种原子相互作用势的形式及各自的优缺点。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。