区域时间
- 与 区域时间 相关的网络例句 [注:此内容来源于网络,仅供参考]
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From the detailed simulation results and analysis,for the emulational frame based on minimum zone set,the route discovery mechanism of DSR is independent of nodes mobility,every once,the source node acquires a route to a target node which its relative position is alterant,the routing time is steady but not be effected by nodes mobility,the conclusions are obvious helpful for reducing route tip and increasing routing efficiency.
通过对选取总路由流量,路由平均跳数、平均路由发现时间的实验数据分析发现,对于基于最小区域集的仿真框架,DSR的路由发现机制并不受节点移动性的影响,每次源节点获得一条到达相对位置已改变目的节点的新的路由的时间并不受节点的移动性影响而趋于稳定,可明显减少路由跳数,增加路由计算效率。
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Under this flow, the convex initial curve will preserve its perimeter, enlarge the enclosed area and make its curvature to be positive definitely. And as the time lasts, it will become more and more circular, and finally, as the time goes to infinity, the curve will converge to a circle in the Hausdorff metric.
本文证明在这种新的曲线流之下,闭凸曲线周长保持不变、所围区域的面积不断增大而曲率保持恒正,并且,随着时间的推移曲线变得越来越圆,最终当时间t趋向于无穷大时,曲线在Hausdorff度量意义下收敛到一个圆周。
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The results show the high accuracy quality of spectral element method and the stability of Newmark time integral method. Then some computational parameter is changed in example one such as the subdivision style of computational domain, time step length and such on. Some important conclusions and strategies for spectral element method with Newmark integral method for computational aeroacoustics can be given. The feasibility of spectral element method for computational aeroacoustics is verified.
计算结果表明谱元方法的高精度及Newmark时间积分方法的稳定性,并改变算例的计算参数,例如计算区域剖分方式、时间推进步长等进行了计算,得出了一些重要结论,为使用谱元方法结合Newmark积分求解气动声学问题积累了重要的经验,最终证明了谱元方法求解计算气动声学问题的可行性。
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According to the natures of the 3rd-sequence, two kinds of facies-change surfaces and two kinds of diachrononism in stratigraphical records, the sequence stratigraphic framework can be established.
在前人岩相古地理研究的基础上,根据三级层序的两大特征——"空间上相序的有序性和时间上环境变化的同步性",并考虑到地层记录中的两种相变面和两种穿时性――"静态相变面及其相变面穿时、动态相变面及其间断面穿时",建立研究区域志留系的层序地层格架,并在此基础上从沉积物的时间演化序列和沉积相的空间展布形式入手,恢复其古地理背景。
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Results Their eruption time, tetter distributing, fever time and syndromes and so on of the adult varicella patients were different from those of the infant varicella patients.
结果患者出疹时间、疹分布区域、热时间和并发症等,成人水痘都与儿童水痘不同。
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Climate: The prevailing or normal pattern of weather at a place, or in a region, averaged over a long period of time; in contrast to weather, which is the state of the atmosphere at a particular time.
气候:某一地点或某一区域内普遍的或者通常情况下较长时间范围内的平均天气状态;与天气不同,天气是指大气在某一特定时间的状态。
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In this paper, the 3-D finite element relocating mesh method is used to calculate the temperature field and the thermal creep stress field of spillway dam and mid level outlet dam in certain roller compacted concrete gravity dam, sensitivity analysis have been down with different parameters, such as placing temperature, the location of cooling pipe, cooling temperature, time for water supply, ascended-layer of concrete, intermissive time and different placing time, and the commendatory construction scheme have been put forward in such analysis; according by the test result on the two scheme of concrete aggregate combination (basalt as coarse aggregate and limestone as fine aggregate, basalt as coarse aggregate and basalt as fine aggregate), simulation analysis on temperature field and thermal creep stress field of the commendatory construction scheme have been down, and analysis have also been down on temperature field and thermal stress field of the two different aggregate combination, the result indicates that the spillway dam and mid level outlet dam which adopted these two aggregate combination can both satisfy the require of design crack resistance in concrete, furthermore limestone as fine is better than basalt as fine aggregate; the effect of summer water storage and winter water storage on the temperature field and thermal stress field have been analyzed, comparing with winter water storage, in summer water storage scheme the maximum tensile stress at abnormal concrete in upstream fill is decreased by 0.1~0.3MPa and there are no evidence change of the maximum tensile stress at other parts, which indicate that summer water storage is avail for the crack resistance of upstream fill; according to the simulation calculating result and comparing temperature simulation calculating results and temperature controlling measures of some similarity projects both completed and construction, synthesis appraise have been carried to the design temperature controlling measures of dam, and the temperature controlling measures of this project have been brought forward, all these have great reference value on the design of temperature controlling measures and the optimization of the construction scheme.
本文采用三维有限元浮动网格法仿真计算程序,对某碾压混凝土重力坝的溢流坝段和中孔坝段分别进行了三维有限元温度场和温度徐变应力仿真计算分析,对浇筑温度、冷却水管的布置方式、冷却水温、通水时间、浇筑升程和间歇时间、不同开始浇筑日期等参数进行了敏感性分析,在此基础上提出了推荐的施工方案;根据两种骨料方案(玄武岩粗骨料+灰岩细骨料方案;玄武岩粗骨料+玄武岩细骨料方案)的混凝土性能试验研究成果,对推荐的施工方案进行了温度场和温度徐变应力仿真计算,并对比分析了两种不同骨料情况下的温度场和温度应力,结果表明溢流坝段及中孔坝段采用上述两种骨料均能满足混凝土的抗裂设计要求,且灰岩细骨料优于玄武岩细骨料;计算分析了夏季蓄水和冬季蓄水对坝体温度场和温度应力的影响,夏季蓄水方案与冬季蓄水方案相比,坝体上游变态混凝土区域最大拉应力小0.1~0.3MPa,其他部位最大拉应力无明显变化,夏季蓄水对坝体上游面混凝土的抗裂有利;根据仿真计算成果并通过比较国内一些已建和在建的类似工程的温度仿真计算成果及采取的温控措施,对大坝的设计温控措施进行了综合评价,并提出了该工程的温控措施,对温控设计和优化施工方案具有重要参考价值。
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The bands near 2300nm become vague and fade away in the diffuse NIR spectra of pink relicts along with leaching time. The bands between 1300 and 1600nm of activated palygorskite are much wider than un-activated one. The diffuse spectra of unactivated and activated gray palygorskte are slightly different.
粉红色残留物的漫反射NIR谱的研究显示2300nm附近的吸收峰随酸浸蚀时间的延长而模糊并消失,且1300nm~1600nm范围的吸收峰比未经酸浸蚀者的该区域吸收峰宽;灰白色坡缕石的漫反射NIR谱随酸浸蚀时间的延长未发生明显的变化。
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The results shows that there is a critical field stress, and if the electric field is lower than the critical value, the ice amount accreted on a conductor and ice density increases with the increase of the field, otherwise, the ice amount and density decrease with the increase of the electric stress.
通过理论分析,建立了导线覆冰过程中热量传递的数学模型,并得出: 1)、导线覆冰存在干增长和湿增长两种方式,当碰撞同一区域的相邻二个水滴的时间间隔大于水滴冻结所需时间时,覆冰为干增长,否则为湿增长。
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When the disk, which has one face and double layers in the second recording layer and has free space for recording new matters, is under ending operation, it will take more time to finish this, it will be not very conveniently to be done by user, similarly, the operation of sectoring will also cost much longer time.
对在第二层记录层的数据区域中存在未记录部分的单面双层光盘进行终结处理时,终结处理需要较长时间,不利于用户的便利性,同样,区段-出也需要较长的时间。
- 推荐网络例句
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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).
呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。
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The cost of moving grain food products was unchanged from May, but year over year are up 8%.
粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。
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However, to get a true quote, you will need to provide detailed personal and financial information.
然而,要让一个真正的引用,你需要提供详细的个人和财务信息。