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This algorithm dynamically changed the initial value of collision window and the increasing extent of backoff by using the logarithmic function which took the numbers of network nodes as variable and reduced the probability of collision of data transmission, and the network simulations were carried out by the OPNET software.

该算法使用以网络节点数为变量的对数函数，动态调整竞争窗口初始值和窗口退避增大幅度，降低了数据传输的冲突概率，利用OPNET软件实现对退避算法的网络仿真。

Increasing numbers of young American children are showing signs of serious malnourishment, fueled by a greater prevalence of hunger in the United States, while, paradoxically, two-thirds of the US population is either overweight or obese.

美国的饥饿问题越来越普遍，致使越来越多美国幼童出现严重营养不良的情况，矛盾的是，多达三分之二的美国人口不是体重过重就是肥胖。

Result: RKX could decrease the increased breast diameter, mammilla height, reduce the numbers of mammary gland lobules and relieve the pathologic changes of mammary gland. It could also decrease estradiol, prolactin levels and MDA content in serum, increase the serum progesterone level and inhibit the decrease of the coefficient of thymus.

结果：乳块消方能明显减小大鼠乳房直径、乳头高度和乳腺小叶数、小叶内腺泡数，此外，明显降低血清雌二醇(E2)、催乳素水平，提高孕酮水平，增加SOD活性，抑制胸腺系数减少。

But it does suggest growing numbers of Chinese yearn for a system of governance that provides more than rising incomes, born out of a marriage of convenience between communism and capitalism.

但它确实显示，越来越多的中国人渴望在社会主义与资本主义基于利益关系的联姻以外，诞生一种统治体系，为人民提供比收入增长更多的东西。

In Chapter 2,I consider a queuing system in which there are two exponential servers, each having his own queue, and arriving customers will join the two queues separately, and analyze the two-dimensional Markov process representing the numbers of jobs in the two stations. A functional equation for the generating function of the stationary distribution of this two-dimensional process is derived and solved through the theory of Riemann-Hilbert boundary value problems. In Chapter 3, I consider the system with two parallel queues, in which arrivals join the shorter queue.I describe the problem of coupling and show that the generating function Fcan be continued as a meromorphic function to the whole complex plane.

全文包括三大部分：第一章介绍了基本的背景、研究进展和文章主要采用的方法；第二章研究的是有两个服务员共享的简单的排队方式的模型，即每个服务员有各自的队列，两队队长互不相关，分析了代表两个队长的二维马尔柯夫过程，推导出了二维过程的平稳分布的母函数的方程，并运用Riemann—Hilbert边值问题理论解出了母函数的表达式；第三章研究的是JSQ-PS模型(the joining the shortest queue model with processor sharing)，模型是组合了加入最短队模型和处理器共享模型而成的有用排队模型。

At the same time, the MEMS geophone can be used to monitor the microseismic event of coal mining, water reservoir and hydraulic fracturing through the research of failure location and the ratio of rock fracture can be predicted by counting numbers of acoustic emission.After spent six months to monitor injecting microseism in Ying 11 block of DongXin field using this system and collect abundant microseismic wave files. The result showed that the orientation of injecting fracture was mainly NE90°to NE125°. The maximum horizontal principal stress directions were mainly distributed in NE90°-NE130°range. Analysis of numerical simulation result of reservoir stress in Ying 11 block showed that the maximum horizontal principal stress directions are approximate east-west in central and western region and approximate NE130°at eastern border.

利用该系统对东辛油田营11进行了六个月现场注水微震监测，对监测数据的处理表明营11注水区域裂缝发育方向基本上为NE90°-NE125°；同时营11地区油藏地应力数值模拟结果分析表明其水平最大主应力的方向主要分布在NE90°-NE130°的范围内，研究范围中西北区块的水平最大主应力方向近似为东西向，研究区块的东部边界的水平最大主应力方向近似为NE130°左右，模拟结果与裂缝监测方位相符较好，两者结合给出了这个地区合理开发部署建议。

Numbers of anthropologists especially on the field of morphology and archaeology insist on that Mongoloid originated inside of China, since there are large amount of ancient ape man remains and fossils excavated from China.

分子进化和分化的特征能使我们认识种之间的时空变化。分子人类学研究表明了现代人类有共同的祖先，黑人是世界的祖先人群。

Since the 1980s of last century, China"s government has given out numbers of official policies concerning promoting and guiding the development of its cultural industry. Such policies have played a crucial role in the onrush of China"s cultural industry.

从上世纪80年代开始，我国政府出台了大量促进和规范文化产业发展的政策措施，每年都源源不断有新的政策出台。

But Palfrey has also hinted that she has a record of the phone numbers of thousands of more than 10,000 customers that could embarrass more the a few of the US capital's high-fliers.

但帕尔弗里也同时暗示，它记录下的电话号码数以万计，可能会令美国首都华盛顿的多名高官尴尬。

The problem of huge numbers of datas are disposed in the process of disposed three-dimensional laser scanning datas, so on the base of carefully analszing the serial algorithm of plane segmentation and multiple datasets registration in the process of disposing three-dimensional laser scan datas, according to the method of parallel programming basing on MPI, the paper used the right means of datas distributing to design and realize the parrel algorithm of plane segmentation and multiple datasets registration.

本文针对三维激光扫描数据处理过程中所处理的数据量大这一问题，在认真分析了三维激光扫描数据处理过程中平面分割和多视点配准串行算法的基础上，根据基于MPI并行程序设计方法，采用合适的数据分配方案，设计了平面分割和多视点配准的并行算法，并给出了效果图，以及并行算法加速比和效率的实际数据，最后对并行算法效果进行了分析。

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。