条件分布

The phase anomaly zones are investigated on the basis of the integral theorem of Helmholtz and Kirchhoff in terms of the Kirchhoff′s boundary conditions and the physical meaning of the integral for the diverging and converging spherical waves.

从波动方程出发，在基尔霍夫边界条件下，根据积分的物理意义，简明地研究了发散和汇聚球面波的相奇异区域分布。结果表明，除了汇聚的球面波焦点区域存在相奇异现象外，焦点以外的区域及对发散的球面波同样存在相奇异现象。

Based on the Eulerian two-fluid model and with the use of numerical simulation software Fluent, the paper simulate the coal gasification plant's operation state without chemical reactions involved, and mainly discuss the temperature and the interstice distribution in the coal gasification plant, under the condition of different inner cylinder radius and outer cylinder radius.

基于Eulerian双流体模型，利用Fluent数值模拟软件针对煤高效制合成气装置进行无化学反应参与的运行状态的模拟，重点讨论在不同的内筒半径和外筒半径的条件下，气化装置内的温度和空隙率分布情况。

Suppose that the random Doeblin condition is satisfied, we prove that the invariant measure exists and any initial distibution convergence to the measure with an exponential rate.

假设随机"Doeblin"条件成立，我们证明了随机环境的马氏链的不变测度存在，且任何初始分布以指数收敛速度到些不变测度。

Second, transient flow for vertical well and fractural well in porous media with arealanisotropy has been researched in this paper. The analytic solution for vertical well andsemi-analytic solution for vertical fractural well is developed by using image inversion,superposition principle, Laplace transformation, Fourier transformation, as well as theirinverse transforms, and storage and skin are taken into account. For vertical fractural well,influence of pressure and productivity is studied when the orientation of artificial fractureisn't in accordance with the direction of major permeability, it is fundamental to evaluatepotential and analyze well test data.

文中研究了平面各向异性储层不定常渗流问题，建立了平面各向异性储层交叉直线边界中一口直井渗流的数学模型，利用镜像反演、Laplace变换、Fouier变换及其反变换推导了不同边界条件下直井的Laplace空间解析解，考虑井储和表皮的影响，分析了曲线特征及影响因素的敏感性曲线；并运用影响椭圆及Duhamel叠加原理，推导了平面各向异性储层中垂直裂缝井的压力分布方程，考虑了水力裂缝与主渗透率轴成一定角度对压力及产能的影响，为垂直裂缝井的产能评价及试井分析提供依据。

The established computational method is used in hospital neutron irradiator for different power levels. The detailed fluid velocity and temperature fields in the core and the temperature of the fuel elements are calculated. The maximum power for the onset of the boiling is also predicted.

采用了确定的计算方法对反应堆实际条件下的工况进行了研究，得到了详尽的计算结果，给出了医院中子照射器堆芯的流场和温场，以及燃料元件包壳外表面和内部芯块的温度分布。

They didn t study the detailed stability: irreducibility, regular, positive Harris recurrence, and unstability: non-positivity. In the paper we study the drift criterias of these forms of st...

本文利用Drift有关的判别法来给出这些性质的判别条件、 PDMP最初是由Davis引入，其引入的PDMP的首次跳时的分布函数要求必须是绝对连续的，本文是针对刘国欣推广的PDMP模型。

Analyzing the isobar distribution under the flight condition of zero attack angle and ±5°attack angle when inlet starts and unstarts,the unstart of inlet can be concluded.

通过对不同攻角飞行条件下起动和不起动时压力分布的分析，得到进气道不起动的结论。

This paper describes the experimental results of the Tangshan earthquake which are in reasonable agreement with the seismological and geological data of the Tangshan districtt 1,Isopach and isochromatic fringe patterns of the Tangshen structures show three areas of strees c...

唐山等和线和等差线条纹图显示出三个应力集区，与唐山的主震和余震位置一致。2。唐山主应力轨迹线方向为东北方向。这个方向与华北现代构造应力场主压应力方向一致。激光全息光弹实验方法可以用来探讨不同的构造形态在不同边界条件下的应力分布和变化，从而为较大地震预报提供线索。

In this paper, the dependence of the yields, intrinsic viscosity and their distribution as well as thermal stability of the terpolymers on the reaction conditions and isocyanate content were described.

并考察了反应条件，异氰酸酯加入量对共聚产率及共聚物的特性粘数、分子量分布及热稳定性的影响。

In this paper,the law of iterated logarithm for product sums of positive as- sociated sequences with the strong stability and the strong law of large numbers for product sums of positive associated sequences with different distributions are proved.

证明了强平稳正相协列乘积和的重对数律与不同分布正相协列乘积和的强大数律，指出了部分和服从强大数律但乘积和未必服从强大数律这一事实，并讨论了定理2中一个条件的必要性。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。