分布规律

Solar energy distribution on the main surface is somewhat even,the backwall reflection is alittle profitable for the main surface well-distribution.

室内主体环境中的太阳光合有效辐射PAR的分布分布规律与太阳总辐射相同，在主体水平面上PAR的透光率为25%左右。

Roots were sampled by coring and the changes of root weight and length were determined in five development stages.

空间分布规律是：冬小麦根系随土层深度的分布，无论是根长还是根重都是由上到下逐渐减少，遵循指数递减模型。

The real-world joints in the aircraft structure usually consist of multi-row fasteners. This thesis builds the 3D FE contact analysis model of a typical aircraft joint with three-row countersunk screws, and studies pin-load distribution and stress characteristics under constant and varied cross-section thicknesses as well as with and without pre-tighten screw conditions for the joint. Many applied pin-load numerical distribution laws for different conditions in the joint are recognized.

本文对典型的多排沉头螺钉接头建立了三维有限元接触分析模型，对螺钉的钉载分布在截面等厚度和变厚度、无预紧力和加预紧力多种情况下进行了数值计算分析，给出了诸多实用化钉载分布规律。

Fagaceae is one of the most important families in temperate and subtropical regions,and especially in China.

壳斗科在我国有7 属350 多种和变种，是温带、亚热带最重要的森林树种，笔者用离差平方和法对壳斗科植物在中国的地理分布规律进行了研究，认为其落叶类型和常绿类型在空间分布格局上有很大差别。

Finally, the research of Medicago falcata distribution strategy, inter-community diversity and its mechanism of variation was conducted through abundance index, diversity index, equality and inequality study in different communities.

最后，通过沿坡度梯度分布的不同群落类型的丰富度指数、物种多样性指数、均匀度和非均匀性的研究，探讨了内蒙古黄花苜蓿的分布规律、群落内物种多样性及其变化机制。

It includes the following aspects of the Gulf: regional geology, topography and geomorphy, types and distribution of superficial sediments, regularities of distribution and engineering geological characteristics of Quaternary sediments, bedrock and its structure and existing major engineering geo-environmental problems.

分别对胶州湾周边区域地质，地形地貌，表层沉积物类型与分布，第四系沉积物分布规律，第四系沉积物工程地质特征，基岩与构造和存在的主要工程地质环境问题等进行研究。

Additionally,we specially tested seeds antioxidant enzyme and protein of Hedysarum scoparium under drought stress or recover condition,and the Peganum harmala characteristics of seed traits and communities distribution to find out the mechanism of resist-drought.

同时，我们还研究了骆驼蓬的种子特性及群落分布特点，这些研究结果均有助于我们进一步了解植物种子的抗旱生理生化机制和群落分布规律，为荒漠治理及优势群落的发展与保护等提供理论依据。

The results indicated that there was an ecological succession of wetland plant communities and that the successive series is as follows: aquatic plant→helophytes→swampy prata→herbosa with the changes of habitat from aquatic to mesophytic. The horizonal distribution regularity of plant communities showed symmetric distribution at loop lake or banks of small stream and con centric distribution at depression. The vertical distribution regularity is as follows: aquatic vegetation→moor vegetation→swampy prata vegetation→subalpine meadow subalpine shrub from the center of lake to the hilltop.

结果表明，随着湿地水分由多到少的变化，植物群落类型发生相应的生态演替，其演替序列为水生植被→沼生植被→沼泽化草甸植被→草甸植被，且在水平方向呈对列式和同心圆式分布；从湖心至丘顶的垂直分布规律表现为水生植被→沼泽植被→沼泽化草甸→亚高山草甸→亚高山灌丛。

At the same time, the distribution mode of the strand shallow lake and the delta deposition system have been established in this region. The research on type and distribution regulation of subtle trap combining with geologic strata structure indicates that the south slope belt, ditch valley belt, Guangbei slope break and southwest of noselike conformation belt are the more advantageous belt to find subtle trap.

在层序地层格架内，通过古地貌研究和沉积体系研究，识别出低位沟谷带和坡折带等控制沉积的两种地貌，建立了本区滨浅湖沉积体系和三角洲沉积体系的分布模式，结合地层结构特点，对隐蔽圈闭类型及分布规律进行研究，指出南部斜坡带、沟谷带、广北坡折带及鼻状构造带西南端是寻找隐蔽圈闭的有利区带。

The accommodation analysis revealed that the distribution of strandline sands for this area is controlled by the distribution of stratigraphic base level and the paleogeographic features.

可容空间分析说明，本区分流河道砂体的分布规律是受地层基准面分布状况和古地形控制的。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。