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The authors discuss a new numerical simulation method of the downburst wind loads on the basis of the previous research. Firstly, the wind speed is expressed as the sum of an instantaneous mean wind speed and an amplitude-modulating non-stationary fluctuating wind speed. Secondly, a new method based on the modified Osegguera and Bowles/Vicroy model to simulate the mean wind is presented and the fluctuating wind is simulated by a modified spectral representation method.

在将下击暴流风速表达为时变的平均风速和调制的非平稳脉动风速之和的前提下，本文采用基于改进的OBV模型Oseguera and Bowles/Vi-croy(OBV的方法来模拟平均风速，其平均风速直接由改进的OBV模型表达，而不同于已往研究中将平均风速表达为竖向风剖面与时间函数的乘积，并采用结合快速傅里叶变化的谐波叠加法来模拟调制的非平稳脉动风速。

By the expansion of a function in terms of spherical harmonics, solutions in form of separation about the asymmetry disturbance were studied. At last, by the theory of stability of differential equations, under the no limitation or less than 1 to the symmetry stationary radius, the asymmetry stability of stable and unstable conditions were obtained.

然后利用球调和函数展开，研究了有关扰动的偏微分方程的变量分离形式的解，最后根据微分方程稳定性定理，在肿瘤静止半径没有限制或肿瘤静止半径小于1的情况下，得到了非对称扰动的稳定和不稳定的条件。

The formula of the pressure radiating from the spherical shell is deduced by using WDA and the stationary phase method.

验证了本文所提出的理论研究方法和研究结果的正确性。

Comparing the calculated results and the experimental results, good coherencewas found, which means after importing relative materials factors and initial condition themodel had reflected main truth and was valid for precise prediction of the SHS.5, SHS is a process far from equilibrium, which is always accompanied by rich self-orderbehavior, such as oscillation, spin, stationary wave and so on.

该模型将反映燃烧过程的主要参数用相应的样品和产物的性质进行表示，为更好地对工艺进行控制提供了简捷的途径。5、SHS过程中大量的燃烧现象是远离平衡态的动力学过程，常常表现出丰富的时空自组织行为：脉冲波、螺旋波、混沌燃烧等。

Our only "station" was the turning of a stationary wheel, spinning faster and faster.

我们的"静态"只是静止轮子的运转，旋转得越来越快。

Methods:100 metre running, stationary grenade and standing long jump were tested in 602 recruits and veterans in the northwest and compared with each other and with the non-emergeney.

对驻西北某应急作战部队 60 2名新、老战士 10 0m跑、原地投弹和立定跳远进行测试和比较的同时，并与全军和全区非应急作战部队以往研究资料进行比较。

The staple export goods include daily plastic product, stationary, dishware, kitchen ware and household appliance ect.

主要出口产品有日用塑胶制品、文具、餐具、厨具及家用电器产品等。

A Find the stationary points of the curve.

求曲线的驻点。

Methods 252positive samples of blood culture were an-alyzed according to the lag phase,loganithmic growth phase and stationary phase of bacterial growth curve.

方法将血培养阳性标本252例，按照细菌的生长曲线的三个阶段--迟缓期、生长期、稳定期进行分析犤1犦。

The relation between the parameter of ground motion and time is transformed into a pure random process with the amplitude varying with time. Based on the concept that there is the scaling invariant fractal structure in the transmission of earthquake motion and the self-affinity of the ground motion signal in time domain, an assumption is deduced that the curve of the stationary random noise of the ground motion varying with time is a fractal graph.

将一个运动参数的时间变化过程转化为具有时变振幅的一个纯随机振荡问题，运用地震运动传递具有无特征尺度的分形结构和地运动时域信号具有统计自相似性的概念，提出地面运动随机平稳噪声的时变曲线是一条分形曲线的假设。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。