在中心

It means that the city's spatial expansion has not been supported effectively by the transportation system. The polycentric industrial areas and the annularly distributed population do not match spatially.

具体而言，广州市多中心的产业增长和圈层式的人口分布在空间上不匹配，城市未来钟摆式通勤交通的压力将不断加大，而单中心放射状的"双快"交通系统在解决这一问题上是失效的；另外，"双快"系统不利于外围新城市副中心的建设，相反由于与中心城区的快速联系，有可能将大量的人口留在中心城区边缘，给中心城区带来巨大的服务压力。

Therein, by adopting the ISCSI protocol, the local data storage sub-system constructs the circuital access pattern of the taxation data. The system eliminates the unbalance phenomena between the capability and the demand of the data storage under the traditional bus storage pattern. Under the centralized control pattern, it provides the information access and shares service with the great data volume, the high speed of data transportation and the high availability for the taxation system. By remotely building a backup data center that is totally consistent with the local data center on the IT foundational fabric, the remote data backup sub-system uses the geographical dispersibility of the remote data center and adopts the LVR software replication technology. It implements the synchronous data replication between the local and remote data center, changes the zero standing capability on the great disaster event under the single data center pattern and raises the standing capability on the disaster events for the application and data in the taxation system. By adopting the dynamic replication technology between the heterogeneous data source, the heterogeneous data conformity sub-system successfully shields the various heterogeneous ingredients of the present system.

其中，本地数据存储子系统采用ISCSI协议构建了税务数据网络存储模式，消除了传统总线型存储模式下数据存储性能和存储需求之间的失衡现象，在集控管理模式下为税务系统提供了超大数据容量、高数据传输率和高可用性的信息存取和共享服务；远程数据备份子系统通过在异地构建一个和本地数据中心IT基础架构完全一致的备份数据中心，利用远程数据中心在地理上的分散性，基于LVR软件复制技术实现了本地和远程数据中心之间信息的实时同步，改变了过去单一数据中心模式下对大型灾难事件的零抗灾能力，提高了税务系统内应用和数据对灾难性事件的抵御能力；异构数据整合子系统采用异类数据源动态复制技术，成功屏蔽了目前系统内存在的各项异构成分。

And the perfect Q-vector was applied to diagnose a heary rain process for August 3～5, 1996. The results showed that there were more advantageous using the perfect Q-vector, and suggested that the perfect Q-vector could clearly reveal the system development of the heary rain; the divergence center or line, the divergence field and the frontogenesis function field of the perfect Q-vector could be used to locate the heary rain area; the center magnitudes of the perfect Q-vector divergence field and the frontogenesis function field could be signified the intensity of the heary rain.

结果表明，完全Q矢量能较清楚地揭示暴雨天气系统的演变；考虑了湿过程的完全Q矢量在暴雨的诊断过程中显示了其更大的优越性；定性而言，完全Q矢量散度的辐合中心或辐合线、散度场和锋生函数场有助于确定暴雨的落区，暴雨区正好落在低层完全Q矢量散度场辐合中心和锋生函数场正值中心之间；定量而言，低层完全Q矢量散度场辐合中心和锋生函数场正值中心大小对暴雨强度有显著的指示作用。

By using the multi-year series of the circulation indices P and C for the closed pressure system on the unit radius spherical surface,three characteristic quantities of annual system centers(around the climatological center C-) are defined.1Average distance r,which is defined as the weighted geometric average distance of the annual system centers C deviating from the climatological center C-(i.e.the center location anomaly C′),is a measurement for distribution area of the system...

用单位半径球面上闭合气压系统环流指数P、C的多年序列，构造了历年系统中心在C-周围分布的3个特征量：1平均距离r，它定义为历年系统中心C偏离于气候中心C-的权重几何平均距离，是系统中心分布区域大小的度量；2压缩系数μ，它描述了历年系统中心分布区域偏离于圆形的程度，是历年系统中心位置分布各向异性的度量；3极大异常方向β，它用系统中心极大异常偏离-C处正东方向的角度，给出了系统中心的主要异常方向。

It is included that 4-5 types of active sites exist in the catalytic system and the active site produced polymer with low molecular weight is easy to be activiated while TEA is used as the cocatalyst. While TIBA, the active site produced polymer with high molecular weight and seldom active site produced polymer with low one is prone to be activiated. MAO tends to activiate the active site produced polymer with middle-level molecular weight. In TEA-TIBA catalytic system, TEA and TIBA activiate the corresponding active site and the weight of every active site gradationally varied with the change of the ratio of the two cocatalysts. And the activity of the active site produced polymer with high molecular weight is proportion to the concentration of TIBA.

发现：TEA作为助催化剂时产生低分子量产物的活性中心易于活化，且体系中具有活性的活性中心有4～5种；TIBA易于活化产生高分子量的活性中心，基本上不能活化产生低分子量产物的活性中心；MAO对产生中等分子量产物的活性中心活化能力较强；在TEA-TIBA混合物体系中，TEA和TIBA各自对活性中心的作用表现为明显的互补现象，各活性中心的相对强度随着两种助催化剂之间的比例改变呈现渐次变化，其中产生高分子量产物的活性中心的相对活性(来源：c5AB3fC论文网www.abclunwen.com)与TIBA的浓度有明显的正相关性。

The construction of the international shipping center, besides offering advanced hardware facilities, the soft environment of the high-quality, high-efficient, security is the condition that an international shipping center must possess too, and the good water traffic safety order is an extremely important condition of soft environment in an international shipping center construction, in order to adapt to the construction of the international shipping center of Shanghai, port unit like customs , frontier unit put into a large amount of manpower and materials and the soft environmental constructions related to international shipping center in succession, meanwhile, to ensure the work to put forward the new request of Shanghai Maritime Affairs Bureau who is responsible for Shanghai harbor water traffic safety supervision management and boat policy management, in order to adapt to the construction of fast-developing international shipping center of Shanghai, it is immanency to research and construct and implement of boat policy to develop the high-capacity and high-technology patrol ships.

国际航运中心的建设除了提供先进的硬件设施以外，优质、高效、安全的软环境也是国际航运中心必须具备的条件，而良好的水上交通安全秩序是国际航运中心建设软环境中一个极其重要的条件，为适应上海国际航运中心的建设，口岸单位象海关、边防等单位相继投入大量的人力物力建设与国际航运中心相配套的软环境设施，与此同时，对作为上海港水上交通安全监督管理主管机关的上海海事局的航政管理、航海保障工作提出了新的要求，为适应快速发展的上海国际航运中心的建设，研究开发和建设实施航政管理、航海保障任务主要手段的高性能和高技术含量的巡逻船舶在当前显得十分迫切。

In the last chapter, by introducing the isochronous center of real systems into complex planar and defining complex center and complex isochronous center, a concise linear recursion formula for period constants is given, necessary and sufficient conditions of complex isochronous center (the Time-Angle Difference Theorem) proved, conditions of real systems with linearizable center and saddle treated unitedly and the isochronous center conditions discussed fully for a class of real planar cubic systems.

在第七章，通过把实系统等时中心引入复平面研究，定义了复中心和复等时中心，给出了等时中心周期常数计算的简明的线性递推公式，证明了等时中心判定的充分必要条件，统一地处理了实系统具有可线性化的中心和鞍点条件，并对一类实平面三次系统的等时中心条件进行了完整研究。

Casethat begin transformation but do not become embedded in the baroclinic zone fail to complrte transformation and simply dissipate over lower sea surface temperatures.1at transformation stage,there are two features in 500mb analysis aKOPPU s surface center is located beneath concentric,closed 500mb contours and is equatorward of 5820-m contour associated with a short-wave trough to the northwest of strom bthe closed contours associated with KOPPU 24h earlier have combined with approaching 500mb trough so that KOPPU appear to be in an open wave.furthermore,streamlines associated with this short wave trough have wrapped around the circulation of KOPPU,which indicated that KOPPU has become embedded in 500mb westerlies.

台风变性分为两个阶段：变性阶段和再加强阶段；变性的开始和结束以热带气旋环流和先前存在的中纬度斜压带相互作用为基础，KOPPU嵌入先前存在的中纬度斜压带且风暴中心在冷下沉气流中，而KETSANA没有嵌入先前存在的中纬度斜压带则没完成变性只是消散在低的海平面温度(1)台风变性阶段在500hPa高度场分析中有两个重要特征：a首先风暴中心是闭合的等值线并和风暴中心西北的短波槽相关；随后闭合等值线靠近500hPa槽，因此风暴闭合中心消失，风暴位于开波中。b而且和短波槽相关流线缠绕在风暴中心，结果风暴在西风带中。

Postural sway was measured by seven parameters derived from a force platform (kistler-9281). The seven parameters were: 1 CP sway area; 2 CP total excursion; 3 mean velocity of CP sway in the mediolateral and anterioposterior directions; 4 mean value of CP sway amplitude in the mediolateral and anterioposterior directions; 5 variability of CP sway amplitude in the mediolateral and anterioposterior directions; 6 mean value of the force signal in the mediolateral and anterioposterior directions; 7 variability of force signal in the mediolateral and anterioposterior directions; Repeated measures ANOVA procedures were used to analyze the effect of vision condition and ankle sprain.

身体摆动的大小以测力板量取的反作用力经过处理后的参数表示之，这包括，压力中心的摆动面积、压力中心的摆动轨跡长度、压力中心在两轴的平约摆动速度、压力中心在两轴的平均摆动幅度、压力中心在两轴的摆动幅度的变异性、反作用力在两轴的平均摆动幅度、反作用力在两轴摆动幅度的变异性。

The results show: 96.7% of CG appeared within the range of 40 to 55 dBz, and the center of maximum CG density always coincided with the center of intense echoes, but CGs seldom appeared above 65 dBz. often concentrated around the area with VIL greater than 40 kg · m-2, and the center of maximum CGdensity frequently located around the margin of the center of VIL.

结果表明在 MCS 强雷暴演变过程中：①总地闪数的96.7%集中落在 CR 为45～55 dBz 的回波区域内，在 CR 大于60 dBz 的强回波区域内地闪总数却很少；地闪密集中心的位置与 CR 大于等于50 dBz 的强度中心常常重合；②地闪密集中心与 VIL 中心常常不重合，常落在 VIL 高值中心的边缘或落在 VIL 为20～30 kg · m-2的区域中；在 VIL 小于20 kg · m-2的地方存在较为活跃的地闪。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。