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The computational flow of light propagation and the key techniques of visualization are presented. An optical system was employed to verify the correctness and feasibility of quaternion method in the calculation of beam propagation, and the pincushion distortion caused by the optical system was successfully simulated.

通过对某光学系统的仿真分析，成功仿真出图像经过光学系统产生的枕形畸变，证明四元数方法在光线传输运算中的正确性与可行性，为复杂光学系统的空间光线传输计算提供了另一种方法。

The flow field of the variable thrust motor nozzle with pintle was numerically simulated,and the throat pintle contour was optimized.

1引言对喉栓式推力可调固体火箭发动机内流场进行模拟，能直观了解TCSRM内部的工作情况。

The angle distribution and plane distribution of the diffraction tomography with ultrashort pulse incident wave was simulated.

模拟计算了超短脉冲波场入射下其衍射层析的角分布与面分布。

The co-polarized and cross-polarized backscattering coefficients and polarizability of a layer of non-uniformly oriented metamaterial spheroids under illumination of an elliptic polarized plane wave are numerically simulated.

计算了任一椭圆极化入射下一层非均匀取向的随机分布异向材料粒子的同极化和交叉极化后向散射系数，以及随机粒子产生散射场去极化的极化度。

To study the ecophysiological effects of low temperature stress on podocarpus fleuryi Hickel seedlings, two-year-old seedlings were selected as experimental material. We conducted comparative study. On the one hand, seedlings were separately placed in the plots located at the top, half-way-up and the foot of Jinyun Mountain (different altitudes at Jinyun Mountain led to the difference in air temperature) and subjected to winter low temperature stress. On the other hand, in laboratory, seedlings were exposed to simulated low temperature stress which were artificially controlled .

为了探讨低温胁迫对长叶竹柏幼苗的生理生态影响，本试验选取长叶竹柏的二龄幼苗为试验材料，在试验方法上采取了对比研究方法：一方面，利用缙云山不同的海拔造成的温度差异，分别将幼苗置于山顶、山腰和山脚下三个样地中，进行野外冬季自然低温胁迫处理；另一方面，在实验室中，利用人工控制的不同低温进行模拟低温胁迫处理。

Certain range of elastic modulus and Poisson's ratio was simulated.

实验二：不同的修复材料，其物理力学属性各不相同。

During this process, the spherical polar coordinate transformation and the circle polar coordinate transformation are used to carry on the pretreatment for the historical data about investment ratio and investment accumulation rate of the three industrial sections, and the consequent data also be simulated by statistical software-SPSS12.0; Finally, sensitivity analysis according to investment ratio and the fixed assets investment accumulation rate of the three industrial sections are made and a better resource distribution plan for the three industrial sections also be given.

在预测的过程中，利用球面极坐标变换和圆极坐标变换分别对三次产业投资比例和积累率的历史数据进行预处理后，再利用统计软件SPSS 12.0进行拟合；最后，利用固定资产投资的积累率和三次产业的固定资产投资比例进行灵敏度分析，提出了一个较好的三次产业经济的资源分配方案。

The long range interaction simulated by polarizable continuum model, the hydrogen bonding interaction, and the whole interaction between the solute and the medium were separately investigated.

分别研究了由极化连续模型模拟的溶剂和溶质分子的长程相互作用，溶剂和溶质分子的氢键作用，以及溶剂和溶质分子的整体作用对分子结构和性质的影响。

The theory of 0.5th order differential polarog. for multistep reversible charge transfers is proposed, and a theor. polarogram was computer simulated. The effect of both the standard potential separation DE? and the no. of electrons on polarograms is discussed.

卷积伏安法是近十年发展起来的一种新电化学分析方法，本文报导了逐级电子转移过程的0.51次微分电分析法的理论和实验结果，用计算机模拟了理论极谱图，讨论了标准分离电位和电子转移数对极谱的影响。

The polynomial equation of heat capacity of this compound was simulated by the computer within the temperature range of

计算机拟合了在78.939~301.295K热容对温度的多项式方程。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。