划分时间

The observing activity featured by angle-dependent effects, sequence characteristics, so the problem can be partition into multiple phases according to the maximum slew times. The algorithm based on dynamic programming is developed to find the global optimal solution within polynomial time.

分析了观测活动性质，并基于观测活动间存在时序关系特征，将问题按照卫星的最大侧摆次数划分为多个阶段，提出了基于动态规划思想的算法，能够在多项式时间内得到问题的最优解。

Modern approach methods of geography, ecology, quantitative analysis, expert integration, remote sensing image analysis and geographical information system were combined to reveal the matters in this paper. The eco-geographical background of the research area and the research work studied by other scholars were comprehensively expatiated. The temporal and spatial variation of precipitation and soil moisture, vegetation and soil distribution, and land use/land cover were compared as well. On the basis of foregoing analysis, the eco-geographical differentiation was discussed. According to principles and indicators, with extension engineering method and integrated analysis, the physical geography boundary between subhumid and semiarid areas were demarcated. By using remote sensing image analysis, wavelet analysis of the perennial precipitation and temperature, and the comparison of temporal and spatial variation of the desertification, this paper accounted for the regional response to global environmental change and suggested the dominant environmental problems.

本文采用了地理学与生态学相结合、定量分析与专家集成相结合、遥感图像解译和地理信息系统相结合的方法，对研究区的生态地理背景和已有研究工作进展情况给予了全面的分析和阐述；通过对区域水分条件（大气降水、土壤水分条件）、植被、土壤、土地利用／土地覆被状况等环境要素的时间与空间特征的对比分析，探讨了研究区内部生态地理特征的差异；在一定的原则指导下，通过建立指标体系，以可拓工程方法和模型为支撑，经过综合分析确定了研究区内半湿润、半干旱区界线划分方案；通过遥感图像解译、典型站点多年降水与温度的小波分析、土地沙漠化时空变化的对比分析等，说明了研究区域对全球变化的响应；表明了该区域所面临的主要环境问题。

Tew had sold 10,000 small squares of advertising space on the Web site for $100 each, achieving his target in four months.

图在他的网页上划分出1万个小格子，并以每格100美元的价格出售广告空间。他仅用了四个月的时间就实现了自己"一百万美元"的目标。

Generally, Toft's"strategic interaction"is relatively new and explanative. Being an important starting point for this research, Toft's"strategic interaction"perspective still leaves us with some questions: Firstly, Toft's analysis on the four types of strategy is too far-fetched; Secondly, Toft deliberately evades the question of a strategic choice in his theoretical model; thirdly, the argument"time is conducive to the weak rather than the strong side"is not convincing.

总体上看，托夫特的"战略互动论"比较新颖且有相当的解释力，因此也构成了本研究的重要起点，但它也还是给我们留下了几点重要的疑问：首先，托夫特关于四种战略类型划分过于牵强；其次，在其理论模型中，托夫特有意地回避了战略选择的问题；再次，关于"时间有利于弱者而不利于强者"的逻辑解释也并不能令人信服。

According to time, voltage stability can be divided into longer-term voltage stability and transient voltage stability.

从时间上划分，电压稳定性问题可以分为中长期电压稳定和暂态电压稳定。

Slipper type universal coupling"s fork joint and palm end are the weak parts of the main transmission system. In this article, the two parts" intensity values are obtained through finite element analysis . After making three-dimensional computer simulation analysis by ANSYS, the results show that the middle arc of the fork joint in loaded side and the intersection of fork bore and the arc are the danger location, where the stress is largest and stress concentration is serious.

本文对轧机主传动系统机械部分的薄弱部件进行强度计算，即对滑块式万向联轴器的主要零部件的强度进行有限元分析，通过ANSYS有限元分析软件进行三维计算机仿真，由计算结果可知，在叉头受载侧过渡圆弧段中部、叉头镗孔与过渡圆弧交接处这两个部位的应力最大且存在严重的应力集中，考虑到单元总数限制及计算时间等因素，整体模型的网格划分较疏，不能反映倒圆角等细节。

Nested-girding method improves the solution of pressure function, which could upraise the speed more than 8 times.(4) Based on the qualitative analysis results of geology and employing greyclustering analysis method, the quantitatively discriminating pattern of the size of remaining oil potential is founded.

嵌套网格划分法改进了压力方程的求解过程，进一步缩短了运算时间，节约了设备运行成本；(4)以地质综合分析的定性分析结论为基础，采用灰色系统理论中的灰聚类方法建立的剩余油定性描述量化模型，实现了剩余油潜力大小的定量化评价。

Hypogene high thermal or deep source epi-mesothermal condition and it is not only stressed the mantle source simply but also the crust-mantle;②in order to guid ore exploration better the artificial classification of uranium deposits should be broken and uranium ore-forming system strengthened;③much attention should be paid to searching the diabase-hosted rich uranium ore in strongly argillized cataclastic zone;④attention should be paid to the influence of basement of volcanic basin on the uranium ore formation that should be undstood both in feeling and theoretically through the ore propect process;⑤relation of red basin with uranium ore formation can be made clear from analyzing tectonics, paleo-climate and time and it is not only theoretically important but also helpful to uranium ore prediction;⑥crypto explosive pipe is an uranium ore, rich uranium ore host structure and it is the next goal for uranium ore exploration in east China.

摘要文章论述了华东火山岩型铀矿找矿值得重视的地质问题：①铀成矿既可形成于浅源浅成低温条件，也可形成于深源深成高温或深源浅成中低温条件，在强调深源时，不是简单地认为是幔源就可以了，还必须强调壳幔作用的地质过程；②打破人为的&类型&划分，加强&铀成矿系统&的研究，更好地指导找矿；③研究基性脉体与铀成矿问题应注意构造、岩石矿物成分、成因、蚀变与成矿3大问题，注意寻找泥岩化作用强烈的破碎辉绿岩脉中的富铀矿；④火山盆地基底对铀成矿的作用主要是提供铀源，将基底对铀成矿的影响从感性认识推向理性认识，有效地指导找矿；⑤红盆与铀成矿关系可以从构造、古气候及时间分析研究中得出结论，它不仅仅是一个理论问题，而且有助于铀成矿预测；⑥隐爆角砾岩筒是铀成矿、成富矿的重要储矿构造，是华东火山岩型铀矿找矿的新领域。

It masks a powerful impulse that is starting to reshape continental Asia's territorial expanses. For much of the 20th century the three powers of the Asian land mass, China, India and the former Soviet Union, bothered little with international exchange, and transcontinental development was derisory.

它掩盖了各国开始重新划分亚洲广阔的疆土的冲动对于20世纪的大部分时间，亚洲大陆的三巨头，中国，印度和前苏联国际交流很少有摩擦，整个大陆的发展是微不足道的。

The dislocable distribution of pedestrians in initial status as well as movement process enhances the interactions among pedestrians.The walking speed is adjustable because the pedestrian can move one or more small grids in each time step.The exit is figured more accurately because of the finer lattice,which reduces the probability of pedestrians passing the exit abreast. When one pedestrian walks in the middle of an exit and no pedestrian could share the exit with him,then the evacuation efficiency is decreased.

网格细化使得行人在初始状态以及运动过程中呈现错位分布的特性，行人的错位分布加剧了行人间的相互排斥；网格细化使得在每个时间步内行人可以运动不同的格子数，从而实现了速度的可调性；网格细化使得出口得以精确的网格划分，在错位分布的作用下，形成了多格子模型中特有的行人出口独占效应，大大降低了出口的利用率。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了