条件分布

A brief visual analytical form of temperature distribution on a finite double material irradiated by a continuous wave laser is presented under the third boundary condition in one dimensional heat conduction.

在一维热传导问题的第三类边界条件下，给出激光辐照有限厚双层材料Zn InP温度分布的一种直观简洁的解析形式。

In order to improve the efficiency of grid generation, a two-boundary algebraic method based on transfinite interpolation was developed to generate two-dimensional grid system within geometrically complex two-dimensional plane domain rapidly.

为提高网格生成效率，提出了一种基于超限插值的双边界代数网格生成方法，可快速生成边界正交的贴体网格，引入几何一致性条件保证物理区域不变形，同时发展一系列拉伸方程控制网格分布。

As the condition of Gaussian approximation for the spectral distribution of input optical signal,the expression of transmission efficiency of arrayed waveguide grating comb bandpass filter is recommended.

在输入信号光谱分布高斯近似条件下，给出了阵列波导光栅梳状带通滤波器信号通道传输效率的计算表达式和输入信号光谱宽度对阵列波导光栅梳状带通滤波器信号通道输出特性的影响。

The microstructure of polyethylene was investigated using the techniques of 〓C NMR, DSC, TREF, gas chromatography and isothermal extraction fractionation.

通过改变两种茂金属催化剂的摩尔比例及不同的聚合温度，考察了不同条件对乙烯聚合的催化活性和所得聚乙烯分子量及分子量分布的影响。

By varying and calculating the several important process parameters of the reactor, it has been finally acquired the favorable conditions of the uniform distributions of velocity and temperature profiles in steady state.

论文摘要：本文利用二维动力学模型，通过变化MOCVD (Metal Organic Chemical Vapor Deposition)反应器的几个重要工艺控制参数，计算了其内部稳态热流场均匀分布的条件，实现了反应器操作参数的优化配置。

Li reduces the surface tension of aluminum luquid obviously, increases the ratio and rate of heterogeneous nucleation, which is the necessary condition of the formation of fine grains. However, a large amount of unmelted Al3Sc, Al3Zr TiAl3 particles dispersively distribute in the luquid metal along the edge of the molten pool, which is the sufficient condition of the formation of fine grains.

Li显著地降低了铝液表面张力，大大提高了异质形核率和形核速率，是细晶层产生的必要条件；而熔池边缘液态金属中弥散均匀分布大量未熔化的Al_3Sc、Al_3Zr和TiAl_3质点，则是细晶层产生的充分条件。

The research is about the reuse of urban sewage for virescence irrigation, and the influence of sewage irrigation on eco-environment such as soil, plant, etc. is studied. Under the condition of field sewage irrigation, the transport and transformation and accumulation mechanism of heavy metals, nutrients and organic pollutants as vaporizable hydroxybenzene etc. in the soil-plant system are analyzed. The heavy metal pollution is evaluated by the comprehensive pollution index. The spatial variability of heavy metals in sewage irrigation area is further understood. The spatial variability of heavy metals and physical and chemical properties of soil are reflected in a more straight way by the theory model of variance function curve based on the geographical information system.

在城市污水回用于绿化灌溉对土壤、植物等生态环境的影响研究中分析了大田条件下污灌对土壤-植物体系中重金属、养分及挥发酚等有机污染物迁移转化及富集机理，对重金属污染进行了综合污染指数评价，进一步了解了污灌区重金属分布的空间异质性，基于地理信息系统提出了变异函数曲线的理论模型，更直观地反映出了重金属元素与土壤理化参数的空间变异特征。

So, in this paper, a circular cavity witha large radius is used to replace the straight boundary of thehalf space, then the half space problem can be changed tothe scattering problem of two circular cavities to the steadyincident P-wave . Having the aid of the mature cylinderfunction theory, the general solutions of the wave functionscan be given, and an infinite linear algebraic equations ofthe unknown coefficients in the wave functions can be gottenwith the boundary conditions and the Fourier complex seriesexpansion technology, the infinite linear algebraic equationscan be approximately solved by the finite trunction withsatisfying some definite precision, at the basis of thissolution of the equation, the variations and the lay-outs ofthe DSCF at the circular cavity boundary vs. the differentincident angles, the different embedded depths of thecircular cavity as well as the different dimensionless wavenumber of the incident P-wave.

为此，本文采用一个半径很大的圆孔来代替半空间的直边界，将该半空间问题转化为一无限大空间中两个圆孔对稳态P波的共同散射问题，借助于成熟的柱函数理论，通过写出问题波函数的一般形式解，利用问题的边界条件，并采用复数傅立叶级数展开技术将其化为一个仅包含问题波函数中未知系数的一无穷线性代数方程组，在满足一定计算精度的前提下，通过有限项截断进行近似求解，进而讨论了圆孔边界处的动应力集中系数随不同入射角、不同的圆孔掩埋深度、入射波的不同无量纲波数以及介质的泊松比变化和分布情况。

The results show that the distribution of temperature field and temperature vector is symmetrical under the condition of without leakage.

结合边界条件采用MATLAB对其进行了数值求解，获得了在风流和渗流耦合作用下围岩的温度场和温度矢量分布。

When the velocity distribution is specified for a single condition it is refered to as "single point" design.

当速度分布是一个特定条件是被称为"单点"的设计。

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）。

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％。