查询词典 numerical

The table recent years our country numerical control gold cut theengine bed the production, the import, the exportation and the expensesituation Our country numerical control engine bed at present developmentcondition -- upscale product: The production are very few, moreovernearly all with beyond the border function part necessary, some orforeign brand China makes, the GPD value calculated you, the profitminute go very many; Middle-grade specially is on the middle-gradeproduct: The Chinese brand, the foreign function part and the coretechnology, you gain the capitellum, he gains the big end.

我国数控机床目前的发展状况──高档产品：生产很少，而且几乎都用境外功能部件配套，有的还是外国品牌中国制造，GPD值算你的，利润分去很多；中档特别是中档偏上产品：中国品牌，外国功能部件和核心技术，你赚小头，他赚大头。

In order to verify the results of numerical taxonomy, Besides the examined strains in numerical taxonomy, 6 strains isolated from Caragana sp were analyzed by SDS-PAGE of the whole-cell protein.

本论文简要回顾了生物的界级分类学说，综述了根瘤菌分类的历史和研究现状，描述了根瘤菌分类的方法。

In the numerical calculations,the unknown density of dislocation is approximated with the product of fundamental function and Chebyshev polynomials.The calculations show the present method yields rapidly converging and high accurate numerical results.

在数值求解这组奇异积分方程中未知位错分布密度近似为基本密度函数与Chebyshev多项式之积，计算表明，本文方法的数值结果不但收效快而且精度高。

Numerical computation part includes detailed study on theoretical numerical models and preliminary study on the 1999 Chi-Chi, Taiwan, earthquake.

数值计算部分的工作主要包括两部分：针对构造的理论数值模型详细研究在各种因素影响下的半空间中断层上的自发破裂行为，以及利用本文建立的方程初步研究1999年台湾集集地震的动力学破裂过程。

To validate the model, the numerical simulation is performed for three cases: the wind driven circular flow, the dam-break wave on initial dry bed and the tidal flow in estuary of the Yangtze River. Results show that the model can accurately simulate the 3-D flow structure, and has good numerical stability.

封闭水池内部风生环流、干河床上溃坝过程和长江口实际潮流场的模拟从不同侧面展示了模型的特点，结果表明它能够准确地预测水流的三维流动结构，而且计算简单高效，具有良好的数值稳定性。

The interaction between the foundation and soil is taken into account in the numerical method, which can simulate the actual working mechanism of the dynamic equipment foundation and circumambience soil. Thus, the numerical method has the advantage of more accuracy and reliability over the specification method based on the single mass model.

数值方法考虑了基础和地基的相互作用，更能模拟动力设备基础及周围土体的实际工作机制，较基于单质点模型基础之上的规范方法有更高的精确性和更大的可信度。

In this dissertation, EISCAT radar observations and computer numerical simulation methods are involved to study the climatologic characteristics of polar ionosphere and their mechanisms, as well as the polar ionospheric responses to magnetospheric particle precipitation and convection electric field. Then, with the help of the numerical computation, the EISCAT data are employed to invert the energy spectra of auroral precipitating particles and their responses to magnetic storms and substorms.

本文联合利用EISCAT雷达数据和计算机数值模拟手段，以雷达探测数据为基础，数据分析和数值模拟、理论研究相结合，研究了极区电离层气候学特征与机制，磁层粒子沉降和对流电场对极区电离层的影响，并利用雷达数据反演极光沉降粒子能谱特征及其对磁暴和亚暴的响应。

Marc this paper carried out a finite element numerical simulation on the forming process of cold extruding for the starlike sleeve of constant speed cardan joint of car. The interrelated technological problems of numerical simulation were discussed in detail, the variation curve of extruding force during the course of loading, the cloud chart, which varies along with time, of temperature field distribution of workpiece, the equivalent plastic strain cloud chart of workpiece and the stress distribution cloud chart of diem inner ring were obtained thus explained fairly nice the reason of fatigue damage of dies.

Marc对轿车等速万向节星形套冷挤压成型过程进行了有限元数值模拟，详细讨论了有关数值模拟技术问题，得出了挤压力在加载过程中的变化曲线、工件随时间变化的温度场分布云图、工件等效塑性应变云图及模具内圈的应力分布云图，较好地解释了模具疲劳破坏的原因。

In this paper, according to the basic principle of light– ray propagation, the elliptic cylinder lenses have been designed and used to collimate the semiconductor laser beam. With the computer simulation by use of Matlab, the numerical results are given. The numerical results indicate that the divergence angle of the collimating beam could be as high as 0.1mrad.

在本文中，针对现在对半导体激光器准直的要求作者基于利用柱透镜对半导体激光器光束准直的理论分析，设计了利用椭圆面柱透镜对半导体激光器进行光束准直的方案，对半导体激光器发出的光束经过椭圆面柱透镜的光路进行计算，并且利用Matlab对方程进行求解及计算机模拟得到最终结果。

Order Hilbert ill-conditioned linear equations were solved, and the relative error was less than 0.45%. Numerical experiments verified that the method was efficient compared with the efficient methods used commonly nowadays. Numerical experiments results showed that the conjugate vector base method was suited for solving large-scale ill-conditioned linear equations with fast convergence and high precision.

通过对5000阶的Hilbert方程组进行求解，结果的相对误差小于0.45%，并与当前普遍使用有效的方法进行了比较，数值实验结果表明，该算法适合求解大型病态线性方程组，且具有快速收敛，精度较高的特性。

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。