单中心的

Most of them have concentric space structure with single-center whose disadvantages have been more and more evident with accelerative development of urbanization.

我国大城市及特大城市的空间结构形态大都为单中心的同心圆结构，在城市化进程加速和城市规模不断扩大的情况下，这种结构的弊端已越来越明显。

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。

In this paper, the characters of two kinds of urban structure, the concentric circles with single center and the spool thread with poly-centers, have been discussed.

分析了两种城市结构即单中心同心圆与多中心轴线式的特点。

Land use degree of Guangzhou City is highly positive global spatial autocorrelated. The spatial autocorrelation types of Guangzhou City land use degree is distributed in a centric circle. High-high aggregation is in the central part and low-low aggregation is in the peripheral area. Non-aggregation and Sparse low-high and high-low aggregation are in the intermediate area. Decrease of Moran's I since 1995 shows the weakening of the single-center structure of land use degree.

广州市土地利用程度呈高度的正全局空间自相关，各局部空间自相关类型呈同心圆分布，中间为高高集聚，外围为低低集聚，两者之间为非集聚和零散的高低、低高集聚，呈现出单中心结构。1995年以后， Moran's I 有所下降，说明这种单中心结构在弱化。

For low molar ratios of Al/Zr, a hypsochromic shift of the initial catalyst absorption band, corresponding to the monomethylation of the catalyst, was observed. Further addition of AlEt2Cl was accompanied by a continuous bathochromic shift of the maximal wavelength corresponding to the formation of more dissociated ionic active species. Then, there would be a coordination of monomer to the ionic active species.

结果表明，无论是AlEt_2Cl还是MAO，少量的助催化剂首先使催化剂发生单烷基化反应，主催化剂金属中心的最大吸收峰波长发生蓝移，而当助催化剂量进一步增加时，金属中心的最大吸收峰波长红移，单烷基取代的催化剂被大量的助催化剂夺去电子成为缺电子的阳离子活性中心，以便烯烃单体的配位插入。

Halogenated aromatic compounds with great q〓(the most negative net atomic charges on an atom of the molecule), ENC (electron-nuclear attraction energy of the one-center term for the carbon atoms of the weakest carbon-halogen bond), qc (thenet atomic charges on the carbon atom of the weakest carbon-halogen bond) and E〓 tend to be reductively dehalogenated slow, while halogenated aromatic compounds with high values of △E (the difference of front-line orbital energy), EEC (electron-electron repulsion energy of the one-center term for the carbon atoms of the weakest carbon-halogen bond), Mw, q〓 and α tend to be reductively dehalogenated fast.

卤代芳烃化合物的整个分子的最负的原子净电荷，键序最小的碳卤键中碳原子的单中心项电子-核吸引能，该碳-卤键上碳原子的净电荷和E〓与该卤代芳烃化合物还原脱卤的速率常数负相关；而前线轨道间隙能，键序最小的碳卤键中碳原子的单中心项电子-电子推斥能，Mw，q〓和α与该卤代芳烃化合物还原脱卤的速率常数正相关。

The new presenting VOD interaction for VIP customers creates an exclusive communication channel and adds up to the value of the center; it possesses enriched knowledge database system and electronic transferring system of customers' feedback, an information platform which can be shared by the whole bank, to ensure consistent savor enjoyed by customers; it categorizes its outgoing project into product marketing, loan collection, market investigation and information notification which in turn further embody the value of 95559 customer service center; by means of modelized and digitalized analysis, it has set up and improved professional criteria according to CCCS call center standardized quality system, in which way the center advances itself at every critical factor, forms a multi-dimensional and all-covering service mechanism, so as to realize the final all-win achievement in sound operation, customer satisfaction and employee development.

交通银行客户服务中心凭借创新的理念、先进的技术、精细化的管理和全面质量监控，在客户服务的标准化和差异化上不断突破，建立了7级客户分类服务模式，为各级客户提供符合其需求的个性化服务产品，尤其以业内首创的视频服务为高端客户提供专享联络渠道，提升客服中心的服务附加值；以内容丰富的知识库体系和电子化的工单流转系统，打造了全行共享的信息传递平台，确保客户得到一致的服务体验；通过实施集产品营销、个贷催收、市场调查、信息提醒于一体的电话外呼项目，进一步体现了95559客服中心的服务价值；运用CCCS呼叫中心标准质量体系，以模型化、数字化的分析手段，建立并完善所有关键环节的标准规范，使客服中心持续在各驱动因素上不断改进，形成了多维度、全覆盖的客户服务体系，最终实现客户满意、员工发展和运营完善等各方面绩效的全方位提升。

The results show that the study on transimittivity can be done using the points along the circle arc centered at the roadway or the boring core, the transimittivity at the joints along the right angle ray can be studied using one single point behind the joint, and the studies on transimittivity can be done on any reasonable radius value of the roadway or boring core in a typical rock.

分析结果表明：单节理后各节点透射率的研究，可以通过单节理后某一以巷道或钻孔中心为中心的圆弧上各节点的透射率来展开；射线角为90°的射线上节理后各节点透射率的研究，可以通过节理后某一节点的透射率来展开；单节理的透射率的研究可以在一个固定半径值的巷道或钻孔的模型上用一种典型的岩石进行。

Compared to other models pointed out by foreign scholars, my model was characteristic of multiple periods during evolution of urban systems, complexities of the course of forming urban systems, multiple types of urban functions, periodicity of regional changes of the important regions of urban development, periodicity of dominances of inland central city and seaport gateway city.

此后，随着海疆由开启转为封闭，再由封闭转为开启，最大城市由青岛转为济南，再由济南转为青岛；中心地职能体系由&青岛单中心体系&转换为&青岛、济南双中心体系&，再转换为&青岛单中心体系&；工业发展重点区域也由沿海转向内陆，再由内陆转向沿海；口岸城市的门户职能强度也经历了增强、减弱、增强的不对称&U&型变动；城市体系的空间结构经历了碎化—整合—碎化的过程。

OBJECTIVE: We report the post hoc results of the KyberSepttrial in patients with severe sepsis treated at a single centerearly after new onset organ failure.

目标：作者报导 KS 试验中严重脓毒症患者出现新的器官衰竭早期在单中心的接受了治疗及由此产生的结果。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。