查询词典 numerical

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。

In this work, we mainly study the numerical analysis of bifurcation theory, especiallythe numerical computation of Takens-Bogdanov point in delay differential equations.

本文中，我们主要考虑分支理论的数值方法，具体而言，时滞微分方程中Takens-Bogdanov点的数值计算方法。

The velocity distribution curve by numerical computation near the wall is the same as the Blasius theoretical curve, and it approved that the numerical simulative solution is correct. Obtained the time dependent interface and pressure distribution, but also obtained the time dependent velocity distribution on the cross section. It is a new way to study the gas-liquid two-phase flow.

直接数值模拟圆管中气液两相分层流动不仅能得到相界面、压力分布随时间的变化情况，而且能得到圆管中各截面上速度分布随时间的变化情况，这为研究管道中气液两相流动提供了一个新的研究方法。

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。

This method is based on the work of reference [1]. By using the Riesz present theory in Hilbert space, we first transform the iterative procedure of variational inequalities into a fixed point form. Then, using the Schauder fixed point theory, we construct a numerical verification method with high efficiency that through numerical computation generates a bounded, closed, convex set in which the approximate solution is included.

通过Hilbert空间中的Riesz表示定理，首先将变分不等式问题的迭代过程转化为一种不动点形式，再利用Schauder不动点定理构造了一个高效率的数值证明过程，即通过数值计算产生一个包含近似解的有界闭凸子集。

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。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。