边界对应

A test of wind pressure distribution on the New Control Tower of Beijing Airport has carried out.The wind pressure coefficients of mean,maximum and minimum values,as well as wind pressures of 50 and 100 year retune period with both 10 minute and 3 second time averages have been obtained and the top 8 values have been presented.

对某机场塔台模型，在模拟的大气边界层风场中进行了刚性模型测压试验，得到了这一结构的平均风压系数、最大和最小风压系数分布以及对应于 5 0年和 1 0 0年重现期的 3s及1 0min平均的风压值。

Create Jinfeng 62 (1.2MW) temperature model of mathematics and physics about permanent magnent synchronous generator in wind power, present basic hypothesis and boundary condition. select area that one slot opposite to calculate, utilize FEM calculate roter and stator temperature field. bring forward actual method, carefully analyse the result to generator temperature field, for example reduce coil insulation thickness, decrease conduction coefficient because insulation aging between circle, increase iron-core anisotropism conduction coefficient.

建立了金风62型(1.2MW)永磁同步风力发电机的二维温度场的数学和物理模型，给出了计算边界条件和分析假设条件，以一个槽所对应的电机计算区域，利用有限元方法计算发电机的定、转子温度场，详细分析了绕组线棒绝缘厚度减小、匝间绝缘老化致使导热系数减小、铁心各向异性导热系数提高等参数改进对于发电机温度场的影响。

A rectangular bounding box is associated with each tree node.

节点对应一个矩形边界

Two dominate variation trends are distinguished in the data plots of compressional-wave velocity versus Possion ratio, indicating the effects of mud content and calcite cement on the elastic properties of sandstone samples. In each change trend, with the rock texture transfering gradually from grain-supporting to matrix-supporting with increasing mud and calcite cement content, the propagation of elastic wave also changed from grain-to-grain contacts to rock matrix, which resulted in the measured data illustrating extremely different tendency. It helps utilize the physics properties of reservoir sandstone to extract rock texture and diagenesis properties in the research area.

样品在纵波速度－泊松比交汇图中表现出两种主要变化趋势，分别对应泥质与钙质胶结物的影响；在每个变化趋势中随泥质含量与钙质胶结物含量的增加，岩石结构从颗粒所构成的骨架支撑逐渐表现为基质支撑，弹性波能量的传播也从通过颗粒接触边界转变为通过岩石基质传播，这是使砂岩样品测试结果表现出两种截然不同变化趋势的主要原因，为利用岩石物理特性从地震资料中提取岩石结构、沉积与成岩特征的信息提供了依据。

Based on the electron-lattice interaction,Frohlich Hamiltonian and quantization theory are used to deduce the dimerized energy gap and phase transition temperature of carbon nanotube.

依据碳纳米管中电子-声子相互作用的原理，采用哈密顿量、量子化理论推导了二聚化对应能隙和相变温度，在紧束缚近似、量子理论和能带理论的基础上，利用周期性边界条件对碳纳米管Π电子进行了分析，讨论了碳纳米管的导电性，预测了室温下碳纳米管碳管中载流子输运方向

Thermo-mechanical coupling finite element method is used to calculate the six inherent strain components and the angular distortion of the lap joint, and each inherent strain component is mapped into the model in the form of boundary condition for linear elastic analysis, the angular distortions of the lap joint are got.

采用热弹塑性有限元法计算出搭接接头的六个固有应变分量和角变形，并以各个固有应变分量作为边界条件，对搭接接头的有限元模型进行弹性分析，计算出各个固有应变分量对应的角变形。

With methods of limited areas, root systems of plant individuals were limited in a specific range, providing definite spatial boundary and solid basis for calculation of water requirement needed by plant individuals. On the basis of calculation of amount of water requirement, areas needed by every species to ensure enough water requirement are as follows: Populus simonii is 80.3m〓, Ulmus macrocarpa is 35. 4m〓, Artemisia halodendron is 7. 0m〓, Salix gordejvii is 11. 2m〓. Prunus armeniaca is 15. 2m〓, and Caragana microphylla is 15. 6m〓. The corresponding rational density of plantation which can maintain soil water balance and can ensure plantation stability is 125 individuals/ha for Populus simonii, 285 individuals/ha for Ulmus macrocarpa, 625 individuals/ha for Prunus armeniaca, 625 individuals/ha for Caragana microphylla, 833 individuals/ha for Salix gordejvii, and 1428 individuals/ha for Artemisia halodendron, respectively.

运用有限面积法将植物根系限制在明确的边界内，为植物耗水量的计算提供了一个明确的空间边界范围和可靠的基础，探索性和尝试性地得出了近似野外真实状态下植物个体的耗水量，以此为基础计算得出小叶锦鸡儿、山杏、黄柳、差巴嘎蒿、榆树、杨树等树种的水分营养面积分别是15.6m〓、15.2m〓、11.2m〓、7.0m〓、35.4m〓和80.3m〓，与此对应的能够维持林地土壤水分平衡和林分稳定性的各树种人工林的合理密度为：杨树125株/公顷，榆树285株/公顷，杏树625株/公顷，小叶锦鸡儿625株/公顷，黄柳833株/公顷，差巴嘎蒿1428株/公顷。

Based on the characteristics of phasing switch, the dielectric recovery characteristics for short gap vacuum arc were discussed, a vapor density model was applied under the special boundary conditions to get some relations between arcing time and the surface temperature, vapor density.

讨论了真空短间隙及其对应的短燃弧时间对相控真空开关介质恢复特性的影响，应用金属蒸汽密度模型和不同的间隙边界条件，得到燃弧时间与电极表面温度、金属蒸汽密度的关系。

By means of the plating technology and the system designed and made ourselves, we call them as the direct-heat evaporating roll-pulled with vacuum piston and the helix evaporating of straight heat-wire with the negative thermal specific resistance , the align polishing ring films and the separating ones of pure gold have been plated directly at the inner wall of the capillary of Sealed-off CO〓 laser.

简便有效地使器件的输出功率、光束品质、稳定性和使用寿命都得以提高的作用效果；分析了放电驱动催化机理及催化效果与器件参数、工作状态及其中的等离子体过程的对应关系，建立了数学模型，编程数值计算了放电管内正柱区中等离子体参数分布及其与器件工作外参数的关系；利用我们设计开发的直热式真空活塞卷拖和负阻直热丝螺旋蒸镀工艺及制作的系统，在封离型CO〓激光器毛细管玻璃内壁上直接镀制出了单质金的镜面环膜和离散膜，经理论分析和实验检验，指出美国专利4756000号的环金方案将导致器件工作特性的改变和恶化，降低效率；肯定了正柱区边界部分场对建立良好的激光振荡的作用意义，明确提出了①作为高品质器件设计基础的弥散膜催化剂；②高斯管型弦驻波振动定型磨制、检测的新概念及相应的制备加工工艺；实际制出了管子，测定了其基本的工作特性和初期过程。

Correspondent to the skewness of boundary layer mean flow, upward transfer of turbulent momentum in major part of CBL could occur over warmer surface, while there formed a major path for downward momentum transfer over cooler surface.

对应于平均流动场的畸变，地表较热区之上边界层大部可以出现动量向上输送的情况，较冷区成为大气动量下传的主要通道。

We will see more and more activist government policies that distinguish economic activities according to the nationality of the actors.

我们将看到越来越多激进的政府政策，这些政策根据企业的国籍来区分经济活动。

If we can prove the independence of an axiomatic system, then we can guarantee the conciseness of this system, ie.

如果能够证明某个一阶谓词系统的独立性，那么就能够保证该系统的建立是精炼的，即没有任何一条公理或推理规则是多余的。