环

According to 3D analysis, it is known that shear transfer between rings are carried out by three ways. First is friction between ring joint faces; Second is dowel effect of circumferential bolts; Third is contact-hold effect of tongue-and-groove.

从三维分析可知，错缝拼装衬砌的环间剪切力传递主要通过三个途径实现，一是环缝处两个环面之间的摩擦；二是纵向连接螺栓的销栓作用；三是环缝凹凸榫的接触咬合作用。

China Index Research Institute, according to the latest monitoring information center, in May of 30 major cities nationwide, the turnover ratio or the largest area of Central for Hangzhou to 55.65%, which increases chain has more than 10% of 17, accounting for the total urban more than half of the number; ring or at more than 5-10 percent of the city a total of between 10; chain fell only Baotou and Chongqing, Central declines were 28.89 percent and 15.75 percent, showing the vast majority of cities in the country in May traded residential area there has been a marked increase.

据中国指数研究院信息中心的最新监测，5月份的全国30个主要城市中，成交面积环比涨幅最大的为杭州，达到55.65％，其中环比增幅超过10％的就有17个，占到总城市数量的一半以上；环比涨幅位于5％至10％之间的城市共有10个；环比下跌的只有包头与重庆，环比跌幅分别为15.75％与28.89％，可见5月全国绝大多数城市住宅成交面积都有明显的上升。

Taking Changzhou Gymnasium as example,some emulation calculations of tension construction of cable-supported lattice shells have been analyzed,especially in the analysis of hoop cable tension method.

以常州体育馆索承网壳钢屋盖为例，对索承网壳预应力拉索施工方法中的环索张拉法进行虚拟仿真计算，分析了由于环索连接节点的构造处理及环索张拉点数量的不同对大跨度椭球形索承网壳预应力建立效果的影响，提出了适合该类结构的环索预应力张拉方法。

Dynamic characteristics of Kiewitt cable-supported lattice shells ;2. Stability and static analysis of cable-supported lattice shells ;3. Taking Changzhou Gymnasium as example,some emulation calculations of tension construction of cable-supported lattice shells have been analyzed,especially in the analysis of hoop cable tension method.

以常州体育馆索承网壳钢屋盖为例，对索承网壳预应力拉索施工方法中的环索张拉法进行虚拟仿真计算，分析了由于环索连接节点的构造处理及环索张拉点数量的不同对大跨度椭球形索承网壳预应力建立效果的影响，提出了适合该类结构的环索预应力张拉方法。

The tests showed that the tension of each hoop cable and radial cable distributed unevenly under various working conditions,because of the friction between hoop cable and joints.Compared with the traditional joints,using new joints in structure could make the friction between hoop cable and joints reduce obviously,and friction loss on hoop cable at joints was small.

试验表明，由于环索与节点间存在摩擦，使得各工况下结构各圈环索和斜索张力分布不均匀；与传统节点相比，采用新型节点的结构环索与节点间的摩擦大幅降低，环索预应力损失较小，预应力传递效率更高。

The results indicated the ally1 carbon of cyclohexene was catalytically oxidized by molecular oxygen at atmospheric pressure in the presence of the polymer complex and a trace of HOAc at 70℃, which afforded corresponding alcohol, ketone and hydroperoxide acting as intermediate.

结果表明，70℃时，以微量醋酸为添加剂，在催化剂的催化作用下，以常压氧气氧化环己烯，得到烯丙基位的氧化产物环己烯醇、环己烯酮和中间产物环己烯过氧化氢。

The stability constants for the new macrocycle and binary complexes of the amino acid with the macrocyclic ligand are reported.

大环多胺配体对各种小分子的识别与大环的腔体大小、环的刚性程度及环上取代基的性质有关。

Secondly, the experimental research advances of cyclopeptide nanotubes using as the templets to produce biologic sensors by synthesis with functional nanomaterials such as electronic, optical and magnetic ones.

进而介绍了环肽纳米管用作生物传感器模板，与功能性纳米材料合成制备生物传感器的实验研究进展，接着介绍了环肽纳米管作为药物或药物载体潜在的应用前景，特别是在某些抗菌和抗感染药物开发设计中的应用以及环肽在不同极性的环境中自组装过程微观机制的MD模拟研究进展，最后介绍了环肽纳米管作为模板，制备磁性、电性纳米材料方面的实验和理论研究进展。

An intramolecular α-addition of hydroxy or amine-substituted electron-deficient alkyns catalyzed by phosphines was developed. An intramolecular β-addition of hydroxysubstituted 2-alkynoates trigged by the tributylphosphine was also achieved.

在上面的研究中发现低活性的亚甲基取代的环内酰胺的[3+2]环加成反应也能顺利进行，因此我们研究并实现了β-位取代的贫电子烯烃的环加成反应，进一步拓展了叔膦催化的[3+2]环加成反应。

The application of high speed steel roll ring in the High Speed Wire Rods Plant of Tiangang Group is introduced.

介绍了高速钢辊环在天钢高线厂应用的情况，对高速钢辊环与碳化钨辊环的优缺点进行了对比，提出了高速钢材质辊环、轧辊在轧钢厂使用的可能性。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。