结构群

Keywords: Ni, phenethyl malonic acid, crystal structure, water cluster 1 INTRODUCTION Molecular structures of metallic complex and intermolecular weak interaction mode have become the focal fields of crystal engineering and supramolecular chemistry.

主题词： Ni，苯乙基丙二酸的酸，晶体结构，水群 1金属复杂和分子间的弱相互作用方式介绍分子结构成为了水晶工程学和supramolecular化学的焦点领域。

The acoustic specifications of a group of speech sounds are altered, and this will sooner or later affect phonemic structure.

一群语音的声学特质被改变，迟早会影响音位结构。

By using β-NADPH-diaphorase histochemical staining technique,wefound for the first time that NOS activity was detected in the epithelium of airpathway and endothelium of vessels but was not detected in the small vessels(ID＜100μm),and the NOS express in pulmonary vascular endothelium of preascitic andascitic broilers were elevated,especially in the endothelium and smooth muscle layer ofsmall vesseles with thicker walls and of muscularized nomuscular artery in asciticbroilers.

本研究从田间自然发生腹水症的肉鸡群中选取正常肉鸡、亚临床腹水鸡和腹水鸡为实验对象，通过比较这三种肉鸡血流动力学、心电图、动静脉血血气、肺外动脉舒张反应性、肺血管结构以及肺组织一氧化氮合酶的活性和分布等方面的不同，探讨了肺动脉舒张能力在肉鸡肺动脉高压形成中的作用和机制。

Pseudocubic-, cubic-, and cubic-defect-Si3P4 phases, with their space groups P63/m, Fd-3m, P-42m, IM-3M, and P-43m, respectively.

考虑的Si3P4结构包括分别具有空间群P63/ m， Fd-3 m， P-42 m，I M-3 M， P-43 m的β，γ，膺立方、立方和缺损立方相。

Through the research of the String Quartet by Jia Daqun, the article pointed out resumptively the composer's technique features on the aspects of pitch materials, music structure, various-sound-language, rhythm, and timbre, as well as his successful experiment of combining the modern compositing technique with the Chinese traditional folk music materials.

内容提要：本文通过对贾达群《弦乐四重奏》的分析研究，概括地指出了作曲家在音高材料、乐曲结构、多声语言、节奏、音色等方面的技法运用特点，以及在运用现代作曲技法处理传统民族民间音乐素材方面的成功尝试，以期揭示出作曲家在创作思维、技法创新、音乐构造和音乐内涵方面的逻辑关系。

The material crystallizes in the layered rhombohedral structure with space group R3m.

该材料具有六方层状结构，空间群为R3m。

Therefore, we selected the 5 genes, as well as SMTN gene related to human cardiovascular diseases, for chromosomal mapping, CDS cloning and analysis, spatio-temporal distribution, mutation riddling, and association analysis with production traits of 3 porcine populations. We expect to know the structure and function of these 6 genes primarily, and supply data for porcine marker assistant selection of improving meat production.

因此，本研究选择NADH呼吸链相关基因，以及与人类心血管疾病相关的SMTN基因，以猪的骨骼肌为研究对象，用人×仓鼠体细胞杂种克隆板进行6个基因的染色体定位、CDS克隆和序列分析、用半定量RT-PCR进行时空表达谱分析、进行突变位点的筛选、并利用3个猪群的产肉性状资料进行基因型与性状的关联分析，以期初步了解这些基因的结构和功能，并为改进猪产肉性能的标记辅助选择提供资料。

Collective behaviors are important emergent phenomena in complex systems,from which macro- scopic spatiotemporal or functional structure will emerge via interactions between microscopic individuals.

复杂系统中的集群行为是复杂系统涌现性的重要表现之一，它通过微观个体之间的相互作用，在宏观上表现出一定的时空或功能有序结构。

The reactions of pyridine-2-carbaldehyde semicarbazone with transition metal Ni(II,Cosalts afford two pyridine-2-carbaldehyde semicarbazone transition metal compounds.

配合物[CoL2]·(ClO4)2·H2O(3)，分子式C14H18Cl2CoN8O11，Mr=604.19，属三斜晶系，空间群P-1，晶胞参数：a=9.984(3) A， b=11.082(4) A， c=12.196(5) A ，Dc=1.769Mg/m3，α=112.954(4)°，β=110.050(4)°，γ=94.017(3)°，V=1134.4(7) A3， Z=2，μ=1.067mm-1， F(000)=614，结构偏离因子R=0.0501 和ωR=0.1028，配合物(3)的中心金属离子采取六配位的变形八面体。

The results were acquired by simulation computation, which indicate that water diverted from the Tao River and economic, social, and ecological water demands of the Tao River lower reaches can all be ensured, but sluicing sand water demand can not be satisfied.

在分析九甸峡梯级水库群特点的基础上，以尽可能满足引洮水量、洮河下游生产生活需水，以及下游生态用水为目标，建立了该系统的模拟调度模型，并确定了系统结构和调度原则。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。