分布规律
- 与 分布规律 相关的网络例句 [注:此内容来源于网络,仅供参考]
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The Geomorphology is a discipline which studies the surface form, feature ,factor ,distribution and so on.
地貌学是研究地表形态特征,成因,分布和形成发展规律的学科。
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To study the spatial variability of the sandy desertification soil on the Erdos Plateau, the water content of top soil(0~30cm) under different landforms was measured, and analysed by geostatics methools; and; each layer's water content was measured on some typical soil profiles along the landform section.
为了研究鄂尔多斯夏初不同地形土壤水分的空间变异规律,本试验在鄂尔多斯高原几种地形的沙质荒漠化土壤上,用时域反射仪测定表层土壤(0~ 30 cm)的含水量,对表层土壤水分分布特征进行分析;在不同地形部位选择典型土壤剖面,测定各层土壤含水量。
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The change rules of precipitation ratio, microstructure and particle size and the effect of oleic acid on the seed precipitation of sodium aluminate solution were investigated. According to these experimental results, the total energy and electronic structure of oleic acid locating on gibbsite (001) and face (100) with different modes were calculated, and the equilibrium and growth morphology of the systems were analyzed.
研究添加油酸杂质时,铝酸钠溶液分解过程中分解率、氢氧化铝产品的形貌和粒度的分布变化规律;计算以各种不同方式位于氢氧化铝的(001)和(100)面时油酸分子的总能量和电子结构,并分析各体系的平衡形态及生长习性。
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School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China)Abstract: The change rules of precipitation ratio, microstructure and particle size and the effect of oleic acid on the seed precipitation of sodium aluminate solution were investigated. According to these experimental results, the total energy and electronic structure of oleic acid locating on gibbsite (001) and face (100) with different modes were calculated, and the equilibrium and growth morphology of the systems were analyzed.
摘 要:研究添加油酸杂质时,铝酸钠溶液分解过程中分解率、氢氧化铝产品的形貌和粒度的分布变化规律;计算以各种不同方式位于氢氧化铝的(001)和(100)面时油酸分子的总能量和电子结构,并分析各体系的平衡形态及生长习性。
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The effect of soil salinity on formation of halophyte community complex and its species compositions, patterns of horizontal distribution and species diversity in Keerqin Sandy Land of Northeast China was studied.
本文探讨了科尔沁沙地土壤盐分对该区盐生植物群落复合体的形成、种类组成、水平分布格局和物种多样性的影响,阐明了在不同土壤盐分条件下同种植物体内K、Na、Ca、Mg总量的恒定性和Na含量的变化规律。
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Theobserved strain is 10~2 times as local point strain at the same observed stress.This indicates that macroscopical symmetrical rock is quasi-brittle materialwith microcosmic heterogeneousness and its macroscopical mechanicalbehavior is the results of reciprocity and magnification between microcosmiccharacteristic, not simple sum.(4) The degree of irregularity of strain increases with the number of cycle.But degree of irregularity of transverse strain fluctuates larger at the samecycle. Moreover degree of irregularity of transverse strain is larger than that ofaxial strain. This shows that deformation and failure of rock is process ofevolvement of small crack. Small crack evolves from even and out-of-orderstatus to heterogeneous and ordinal status.(5) Ultrasonic speed decreases with the number of cycle. The decreasecourse is such: Firstly, ultrasonic speed fluctuates in a steady scope in somecycles; And then ultrasonic speed quickly decreases to a certain more smallvalue; Afterwards in succedent cycles, ultrasonic speed fluctuates about thevalue. That is to say, ultrasonic speed fluctuates and decreases at intervals ofcycles. In deformation process of rock, quantitative change and qualitativechange of its small crack evolvement carry through crosswise.(6) Strength and modulus of rock decrease with exponential function asscale of specimens increases.
同一表观应力下,局部点应变与表观应变相差可达2个数量级,表明宏观上均匀的岩石是具有细观特征的准脆性材料,其宏观力学行为是细观特征相互作用、放大的综合结果,而不是简单的叠加;(4)岩样轴向应变不均匀程度和横向应变不均匀程度随循环次数的增加渐进增大,但是在同一个循环内,横向应变离散系数随应力的变化波动较大,且同一循环级别下,横向应变不均匀程度大于轴向应变不均匀程度,表明岩石内部微裂纹的演化是岩石变形破坏的本质特征,这一演化表现为微裂纹从均匀无序分布逐渐向非均匀有序发展;(5)随循环次数的增加,所有岩样内部超声波速会出现衰减,衰减过程表现为在某几次循环内超声波速在某一相对范围内波动,然后急剧减小到某一较小值,在随后的循环内,超声波速又会保持在这一较小值附近波动,即超声波速表现为波动和急剧减小间隔形式衰减,表明从宏观看来平稳的岩石变形过程,内部结构演化过程(微裂纹发展及其相互作用)却表现为均匀量变和突发质变不断交叉进行的现象;(6)岩石强度和弹性模量随尺度增大呈指数函数规律减小。
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A new thought line of reservoir characterization is put forward based on the combination of the high resolution sequence stratigraphy,the architectural element and flow unit analysis method.It integrates the static geological body with the dynamic developing process,the reservoir heterogenesis with oil and water distribution from macro scale to micro scale.
应用高分辨率层序地层、结构单元及流动单元分析的三位一体理论指导储集层的表征建模,从而形成由宏观到微观、静态地质实体与动态开发过程、储集层非均质性与油水分布及流动规律相结合的体系是储集层精细描述的新思路。
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Because the HMA fatigue limit is the theoretical base of perpetual pavement design, to grasp the strain distribution and strain action of HMA layer is key for perpetual pavement design.
沥青混合料疲劳极限的存在是永久路面结构设计的主要理论依据,因此掌握沥青层底应变的分布和应变行为规律是永久路面设计的关键。
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Focusing on the conflict, the relationship between SED and network homogeneousness of power system is studied in this paper. The variation of the network homogeneousness under different dispatch models is analyzed. It is concluded that dispatch mode, transfer capability and its distribution should be considered combining with unification, coordination and compromise, to improve system's ability of withstanding some unexpected accidents.
对此矛盾,针对给定的负荷需求模式,研究SED与电网输电均匀性调度间的关系,分析不同调度方式下对输电能力使用的影响规律,得出输电能力及其分布应与调度方式统一、协调、折中地进行考虑,以提高系统抵御意外扰动的能力。
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The concrete work and main contribution are as follows:(1) The index indicating transfer capability homogeneousness is defined, and the new terms like homogeneous grid, grid according with economic flow are put forward. These new concepts describe the degree in which transfer capability is utilized, and they provide the standard for ideal grid whose transfer capability and power generation dispatching economy are in phase. So, new idea is introduced in transfer capability analysis.(2) The multi-objective function with generation cost and transfer capability homogeneousness weighted is constructed. The relationship between system existing generation dispatching and transfer capability is revealed through comparative analysis between security economic dispatch and security homogeneous dispatch, and the variation rule analysis between generation cost and transfer capability homogeneousness with the change of weighting coefficient.(3) Example analyses demonstrate that the difference between specific power system with ideal instance can be identified effectively using the above concepts and method.
具体工作和贡献主要体现在:(1)定义了衡量电网输电能力均匀性分布的指标,提出均匀电网、符合经济流电网的新概念,以描述电网输电能力被利用的程度,并给出输电能力和发电调度经济性相协调的理想电网标准,在输电能力分析评判领域引入了新观点;(2)构造了发电费用与输电均匀性加权的多目标函数,通过对安全经济调度与安全均匀调度的对比分析,以及权系数变化过程中发电费用与输电均匀性的变化规律分析,揭示了系统现存发电调度与输电能力之间的依赖关系;(3)大量分析表明,利用上述概念和方法可有效识别系统在特定模式下与符合经济流电网的偏差程度。
- 推荐网络例句
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Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.
最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势,并设计了一款彩色夜视摄像机。
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Only person height weeds and the fierce looks stone idles were there.
只有半人深的荒草和龇牙咧嘴的神像。
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This dramatic range, steeper than the Himalayas, is the upturned rim of the eastern edge of Tibet, a plateau that has risen to 5 km in response to the slow but un stoppable collision of India with Asia that began about 55 million years ago and which continues unabated today.
这一引人注目的地域范围,比喜马拉雅山更加陡峭,是处于西藏东部边缘的朝上翻的边框地带。响应启始于约5500万年前的、缓慢的但却不可阻挡的印度与亚洲地壳板块碰撞,高原已上升至五千米,这种碰撞持续至今,毫无衰退。