查询词典 numerical computation

By analyzing the reason of the numerical oscillation phenomenon and computing the temperature field in plate rolling process,it is found that numerical oscillation can be restrained effectively when the heat capacity matrix is lumped by using backward difference scheme.

近年来，许多研究人员采用有限元法分析热轧和淬火等过程中的瞬态温度场。

Whereas analytical method and the before-mentioned numerical method have some places to improve and the determination characteristics of satellite of middle-low orbit, this paper presents a new numerical project of determination of obvious characteristics on condition that range of determination is not very long and the precision of determiantion is the meter grade, and is realized by a software.

鉴于分析法定轨和上述通常采用的数值法定轨都有各自可改进之处，本文针对一般中低轨卫星定轨的特点，在弧段不太长和定轨精度为米级的情况下，给出一种具有明显特点的数值定轨方案，且以软件具体实现了这种方案，并经受了实测资料的考验。

To assure parts' machining precision and to improve productivity, touch probe is used to inspect cylinder of parts on machining centers, thus coordinate of points on features are acquired from numerical control system by a data collecting program, and cylindricity error is calculated by computer. This method has broken the restriction of probe's macro processor that couldn't work out cylindricity error. Data saved in computer are beyond the limited memory of numerical control system, which improves operation speed.

为了保证零件加工精度和提高生产率，在数控加工中心中采用触发式零件检测测头对被加工件的圆柱面进行在机检测，并利用数据读取程序从数控系统内部提取被检测点坐标信息，在计算机内部完成圆柱度误差的计算，克服了零件检测测头自带宏程序无法对圆柱等被测特征进行误差运算的局限性；并且检测数据存储于计算机内，不再受数控系统内存小及运算速度慢的限制。

The numerical results show that our non-reflecting boundary condition and numerical methods are effective.

数值试验的结果表明，本文提出的无反射边界条件和数值方法均很有效。

And the calculation method of theresistance modulus has been given by rule and line. The flow state in the pipeline of the densecolloid slurry is carried on numerical value simulation by the software CFD Fluent, which hasbeen grasped. And the critical flow velocity of the dense colloid slurry in the different ratio ofbetween water and earth is obtained by numerical calculations.

通过使用 CFD 软件 Fluent 对稠化胶体泥浆在管道内的流动状态进行了数值模拟，获得了稠化胶体泥浆在胶体流动性实验台管路中流动时的流型，并且通过计算得到了稠化胶体泥浆在不同水土比下的临界流速。

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。

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。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。