向性
- 与 向性 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In the project, we found a method for designing a family of 4-optimal double loop networks, established some sharp upper bounds of forwarding indices, distance domination nember, the edge-connectivity and the sharp upper bounds of wide-diameter and fault-tolerant diameter of Cartesian product graphs, the lower bounds of restricted edge-connectivity of digraphs and a sufficient and necessary condition for the restricted edge-connectivity of a graph to be equal to the restricted connectivity of its line graphs; raveled pancyclicity and panconnectivity and obtained the exact values of the mentioned parameters for some well-known networks.
本项目给出最优双环网络的设计方法,找到4紧优双环网络无限族,建立了路由转发指数紧的界,确定了笛卡尔乘积图的边连通度的表达式,宽直径和容错直径紧的上界,给出有向图限制边连通度的下界和无向图的限制边连通度等于它的线图限制点连通度的充要条件,对一些著名的网络确定了上述参数的精确值,讨论了宽直径和容错直径之间的关系,解决了超立方体某些变型网络的泛圈性和泛连通性,得到距离控制数的紧的上界。
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Classroom "learning" usually consists of forcing students to read dumbed-down textbooks, memorizing facts from these textbooks, and then regurgitating these meaningless facts on dumbed-down tests.
课堂&学习&通常分为强迫学生阅读dumbed向下教科书,从这些事实的记忆教科书这些毫无意义的事实,然后流性dumbed向下测试。
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The southwest vortex restricted the development of the plateau vortex in some way at the early stage when it appeared in the lower atmosphere. When they were coupled longitudinally, the vertical difference caused by the different vorticity advections between the upper and lower levels excitated the updrafts under 500 hPa and strengthened cyclone vorticity, and then the positive vorticity at 500 hPa and 700 hPa increased by two times The change rate of positive vorticity facilitated the plateau vortex to move eastward.
分析表明:高原涡与西南涡涡心之间的纬向距离在5个纬度的时候,两者上升气流都在500 hPa以下,当两者继续东移,在经向上耦合的时候,二者同时得到发展,西南涡中心的上升气流达到300 hPa,而高原涡中心的上升气流突破200 hPa;西南涡在低层出现初期,在一定程度上制约了高原涡的发展,随着两者在经向方向发生耦合,上下涡度平流不同造成垂直差动,将激发500 hPa以下的上升运动与气旋性涡度加强,使得500 hPa与700 hPa涡心正涡度值的增大近 1倍。
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The reservoir rock types in the region of interest are grain limestone, algal limestone, cryptite, siltstone, muddy limestone and mudstone. The thesis identified as a result of changes in the deposition causing the heterogeneity in plane, and then the geological oil reserves have been calculated in accordance with the areal heterogeneity.3、Based on the data of core analysis, bore logging, array induction imaging log and FMI, porosity and permeability model were built using regression analysis. Through testing 45 rock samples, a, b, m, n value were obtained and used to calculate single-layer oil saturation value using the Archie formula. According to the theory of laterolog and inductolog, resistivity ratio and cross plot were used to identification effective thickness. Effective thickness was identified delicately in 103 wells. Based on the over work, active porosity and oil saturation was calculated accurately.4、According to observation of 100 pieces of the thin slices, cast thin slices and 383m core in three wells, the chief diagenesis in this area were compaction, cementation, denudation and cataclasis. Cementation and denudation were universally influenced active porosity this area. The intergranular pores, residual pores and secondary pores were formed in thin carbonated reservoir of lacustrine facies.5、The influence of reservoir heterogeneity to reservoir calculation was analyzed systematically using actual data. And the conclusions were as follows:①The principal reason leading to oil distribution unequal is interior structural feature of reservoir in structural hydrocarbon reservoir.
确定了由于沉积微相的变化而导致的平面非均质性,进而在平面上按照平面非均质单元计算了石油地质储量。3、利用岩心分析、常规测井曲线与阵列感应、成像测井资料相结合,分岩性利用回归分析方法建立了储层孔隙度、渗透率模型;通过对45块岩样进行岩电试验,获取了a、b、m、n值,利用阿尔奇公式计算了各单层含油饱和度值;根据侧向电阻率和感应电阻率串并联特性,利用电阻率比值法与常规交会图法相结合重建了有效厚度图版,对全区103口井目的层段进行了有效厚度精细划分,通过以上工作,准确求取了储量计算单元内有效厚度参数、有效孔隙度参数以及含油饱和度参数。4、通过对研究区3口井383m岩心观察,100余块薄片、铸体薄片镜下鉴定得出:油泉子油田上、下油砂山组储层主要成岩作用是压实作用、胶结作用、溶蚀作用和破裂作用,其中溶蚀作用、胶结作用最普遍,这两种作用对有效孔隙度影响最大,以上成岩作用形成了原生粒间孔、粒间残余孔和次生孔隙(如粒间溶孔、粒内溶孔、铸模孔、晶间孔等)为主的薄层湖相碳酸盐岩储层。5、利用实际资料,系统分析了油藏非均质对储量计算的影响,认为:①对于构造油气藏而言,油气藏构造及断裂特征是造成油气分布不均的首要原因,储集条件相同的条件下,构造高部位有利于储存油气,油气在垂向的重力分异体现了油气藏内部构造的不均一特征。
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The authors think that the magmas of the intermediate-acid volcanic rocks were derived from basaltic magmas of the lower crust and are mixed magmas produced by the increase of geothermal gradients due to diapiric injection of basaltic magmas and partial melting of intermediate-basic metamorphic igneous rocks in the lower crust,and that they resulted from a series of tectonomagmatic activities that took place when the closing of the Mongolian-Okhotsk sea trough and continent-continent collision caused crustal thickening and brought about the formation of the Hinggan-Mongolian orogenic belt in the process of oblique subduction of the Paleo-Pacific plate beneath the Siberian plate.
中文摘要:通过对大兴安岭北段晚侏罗世吉祥峰组中酸性火山岩的岩石地球化学研究,发现其中存在高Sr低Y型火山岩,即文献上所称的埃达克质岩,笔者认为中酸性火山岩的岩浆起源于下地壳玄武质岩浆,为玄武质岩浆底辟上侵引起地热梯度增加、下地壳中基性变质火成岩石部分熔融的之混合岩浆,是古太平洋板块向西伯利亚板块斜向俯冲过程中,蒙古鄂霍次克海槽封闭,陆壳碰撞使地壳加厚,形成兴蒙造山带时所引起的一系列构造岩浆活动。
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In another words, Xiang Guohua's works contain at least two concepts: one is the formalists' tradition derived from the pedigree of modernism. However, his exploration of form is not the same as the originality and the elitism of modernism; quite on the contrary, his creation of form is carried out in a playful manner.
换句话说,向国华作品中至少包含了两种观念,一种是针对现代主义谱系发展而来的形式主义传统,但是,向国华对形式的探索并不同于现代主义的原创性、精英性原则,恰恰相反,他对形式的创造是在一种近似于游戏的态度下展开的。
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The simulation results shows that when the hydroforming for real axle housing needs two bulge processes and the specific value of the two bulge ratio is about 1, the result is the best one; To obtain an appropriate route of loading force need adjust internal pressure and axial compression force for many times and according to the failure, the size of the two forces which has been mentioned can be rapidly and rationally adjusted; Because of good greasing conditions influencing largely, reducing the friction between tube blank and die inside surface as well as possibly not only makes more materials flow into the bulge area but effectively diminishes the axial compression force; The good or bad characteristics of tube blank material is also one of the decisive factors and when material is selected, we first consider its' formability.
模拟结果表明,当后桥壳需要两次进行胀形,两次胀形比比值约等于1时,胀形结果最好;合适的加载路径要经过多次调试,能根据胀形缺陷对内压力和轴向力的大小进行迅速地合理调整;良好的润滑环境对后桥壳液压胀形的影响巨大,要尽量减小管坯与模腔内壁的摩擦力,不但使更多的材料流入胀形区,而且能有效的降低轴向力的大小;管坯材料性能的好坏也是影响胀形的决定性因素,选材时首先要考虑材料的成形性。
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Ink, you can increase the color depth of a way to reduce Ink viscosity, improved printing ink and scraping knife wettability, so in axial and circumferential transfer content to reductionin.
油不朱方背,可以拔取挑矮色浓度贬矮油不朱黏度的方法,保守印版上的油不朱与刮不朱刀的湿润性,这样在轴向和周向油不朱迁徙度不对异不离放大了。
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As a first step to industrialize this focusing coal liquefaction technology, it is essential to study the multiphase transport characteristics of this new type reactor. In this paper, mass transfer and mixing characteristics of a three-phase continuous loop reactor with a concentric draft tube were measured by the dynamic dissolved oxygen and saturated KCl solution pulse trace methods,with glass beads as solid phase, air as gas phase and tap water as liquid phase, respectively.
本文在同心内置Φ 0.14×1.5m导流筒的Φ 0.2×2.5m有机玻璃环流反应器中,以空气和水为气、液相,玻璃珠为固相,分别利用动态溶氧法与饱和KCl脉冲示踪法测量了液相体积传质系数和轴向分散系数,考察了表观气速、进料浆速、固含率、固相颗粒直径、液相表面张力以及操作方式对上述两个传递参数的影响规律,并将实验结果关联为量纲为1关联式;同时,根据环流反应器的结构特点,建立了传质系数分区模型和轴向分散系数分区模型且分别获得了解析解,对床层传质和混合的不均匀性做了理论分析。
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It is available to carry out numerical simulation and fluid dynamic analysis further. Based on Frozen-Rotor Approach and Rotor-Stator Approach, the numerical simulation was carried out in the centrifugal pump and the numerical results showed that the flow in the impeller and volute of centrifugal pump is periodically unsteady. Due to the interaction between impeller and volute the flow is characterized by pressure fluctuations and it is the strongest at impeller outlet and at the vicinity of the tongue. The unsteady pressure fluctuations are also one of the most important reasons to induce vibration and noise. Secondly, the flow field of the volute is characteristic of the vortex flow, and the vortex flow presents very complicated developing process which is creating, increasing and dissipating every now and then. All these lead to very large flow loss in the volute.
采用Frozen-Rotor冻结转子模式和Rotor-Stator滑移界面模式系统开展了不同工况下离心泵内叶轮与蜗壳耦合的定常和非定常流动研究,结果表明由于叶轮与蜗壳的干扰蜗壳进口周向流动的不均匀性是非常强烈的,特别是叶轮与蜗舌间的相互干扰最为强烈,一直影响到叶轮进口和蜗壳扩散管出口的流场;在蜗壳内整个流动是以旋涡形式向出口推进的,并随着包角的变化旋涡表现出十分复杂的产生、发展和耗散的演化过程,导致蜗壳内较大的流动损失。
- 推荐网络例句
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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。
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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。
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This is not paper type of business,it's people business,with such huge money involved.
这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。