构

Based on the compatibility between force and deformation,an approach to solving assembled geometry by iterating of construction sequence and to solving unstrained geometry by CR displacement was put forward.

根据力与变形的协调原理，提出求安装构形的大循环迭代法和求无应力构形的单元CR位移法。

Diltiazem is an important coronary vasodilating drug and contains two chiral centers while only the (2S, 3S)-isomer has the desired activity.

地尔硫卓是重要的心血管药物，在其分子结构中含有2个手性中心，可产生4个立体异构体，其中只有(2S， 3S)－异构体具有药理活性，因此其立体选择性合成具有很大的挑战性。

Based on the analysis of the Jahn-Teller effect, vibronic interaction and the resolution of group representations, the possible geometrical configurations of 〓 have been derived for the first time. The Gaussian-98 program has been used to optimize the geometrical configurations of 〓 based on B3LYP/6-311G method. It is found that there are at least six different stable geometrical configurations for 〓 The results show that the multiplicity of 2S＋1=7 for cluster 〓 is the most stable state among the eight geometry configurations.

基于多体项展式理论方法，研究得到了〓、HZrCo和〓三原子分子的分析势能函数，这些分析势能函数正确反映了它们的结构特点，可用于研究HZrCo、〓和〓的微观分子反应动力学。3从群的分解与直积理论出发，通过Jahn-Teller变形，vibronic相互作用以及群表示的分解的分析，首次导出了Jahn-Teller效应引起D〓和〓构型〓分子几何构型变化及其可能的电子状态。

Number of screen printing and offset printing and rotary screen printing, of how it works in accordance with the pattern will not be part of the mesh patterns which forms a coating no weblike composition patterns, pattern-welded mesh directly paste stencil in fabric, complete textile printing process.

筛网印花又包含平版印花和圆网印花，其处事道理是按照斑纹图案不兵操纵斑纹的局部网眼涂不有，构不败有网眼构不败的斑纹，堵住斑纹网眼不间接不兵色浆漏印在织物上，达不败织物印花过程。

When they learn Genus, the most used strategie is association with real things, and the second is association with Wordbuilding. When they learn Plural, the most used strategie is association with Wordbuilding.

然而除此之外，记名词属性时最常使用的记忆策略是「联结实际事物相关的联想法」，其次是「利用构词或借词概念所产生的联想法」；而记名词复数型变化则常「利用构词的规则的联想法」；记忆搭配词则最常使用「逻辑性的联想法」。

To obtain thermostable xylose isomerase, the gene xylA from an extremely thermophilic bacterium,Thermus thermophilus HB8 was cloned and its product was overexpressed in Escherichia coli BL21(DE3) with expression vector pET22b.

为获得具有高热稳定性的木糖异构酶，运用基因工程技术，从嗜热栖热菌Thermus thermophilus HB8中克隆到嗜热木糖异构酶基因xylA。

We through search the stable zwitterionic conformers in solution using Self-Consistent Reaction Field Model. We study the properties of aspartic acid such as ionization energies, electron affinities and IR spectra and compare with the results in gas phase.

我们使用自洽反应场模型对天冬氨酸水溶液中的双电性构型进行了系统的寻找，研究了水溶液中天冬氨酸构型的电离能、电子亲合能以及红外光谱等性质，并与气相中的结果进行了对比。

The second exotherm could be ascribed to the relatively compactconformation of individual polystyrene chains; upon heating during DSC scan, phenylring could stack to form some kind of ordered regions inside micro-PS.

而广角X射线衍射以及in situ FTIR等研究证明第二个放热峰则归因于micro-PS特殊的链构象：DSC升温过程中链的疏松构象易于通过苯环的堆积形成局部链段有序化，从而放出热量(大约6.4 J／g)。

A and B isomers could interconvert each other by an inversion of the imine nitrogen atom. In this work, we investigated the substituent effects and solvent effects. This study used the most popular one of density functional theory method unrestricted hybrid Becke three-parameter Lee-Yang-Parr (B3LYP) with the 6-31+G basis set to compute the reaction and activation energies of B/A thermal isomerization.

腙分子的异构化过程藉由转动亚胺基上的氮原子，使腙分子由A 型结构转变成B 型结构(Scheme1)，本研究运用密度泛函数理论中最常被使用的B3LYP，搭配6-31+G基底函数，计算腙分子异构化过程的活化能以及反应热，并且考虑取代基与溶剂效应对能量所造成的影响。

The lurk's sneak attack can damage constructs,if sneak attack damage would otherwise apply on the lurk's attack(for instance,if the construct is flanked or flat-footed).

如果偷袭伤害适用于被潜伏者攻击的目标（例如，该构装体处于被夹击状态，或措手不及状态），则潜伏者的偷袭可伤害构装体。

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％。