查询词典 Reynolds number

But many apparel chain enterprises recognize the importance of logistics, but there are still many deficiencies, such as the operators of some enterprises, the lack of chain operations and logistics management of knowledge, can not understand that the logistics distribution center is a chain of business expansion Basis for a number of other smaller businesses because of lack of funds, the delay in completion of an independent distribution centers.

但是许多服装连锁经营企业虽然认识到物流的重要性，但仍然存在许多不足，如一些企业的经营者缺乏连锁经营和物流管理方面的知识，未能够认识到物流配送中心是取得连锁企业规模扩张的基础；另有一些较小规模的企业因为缺乏资金，迟迟未建成独立的配送中心。

A number of electrons revolving around a center of force constitutes an atom; atoms unite in absolutely regular mathematical ratios and form molecules, and these unite with each other to form a multitude of compounds which unite to build the Universe.

许多电子围绕一个能量的核心旋转，就构成了原子；原子按照一定的数学比例组合，就形成了分子；这些分子相互联合，就形成了许多化合物；这些化合物又构成了整个宇宙。

There are number of reasons for this, however the most powerful effect is the design of the relative positions of the Center of Pressure and the Center of Mass.

有许多原因，但最强大的效果是设计的相对位置的压力中心以及中心的质量的。

An improved regional image centerline extraction methods, in order to avoid a number of the border, Algorithm advance expand border.

一种改进的图像区域中心线提取方法，为了避免出现边界多个1的情况，算法预先扩充边界。

At last, by martingale large number theorem and central limit theorem, we study the hypothesis testing of parameters.

最后， 利用鞅大数定律和中心极限定理对参数作了假设检验。

random variable ; law of large number ; central limit theorem ; Mathematica

鉴于随机模拟过程的易操作性，笔者只对大量独立同分布的随机变量进行验证，即只讨论

To solve this problem, an algorithm to analyze and research the multi-harmonic sources was proposed based on certain assumptions, and the calculation formulae of harmonic superposition were deduced based on Big Number Theorem and Central Limit Theorem of probability statistics.

针对这一问题，论文在一定假设条件下，提出了一种研究多谐波源谐波电流叠加的方法，利用概率统计学中的大数定理和中心极限定理，推导出了谐波叠加的计算公式。

In order to get a deeper understanding of law of large number and central limit theorem, random variables are simulated using Mathematica in this article.

概率论中的大数定律及中心极限定理正是两个描述随机现象统计规律性的重要结论。

Law of large number and central limit theorem are demonstrated and verified from the particular point of view by programming and plotting graphs.

笔者运用数学软件Mathematica作为工具，对大数定律及中心极限定理从不同角度进行演示与验证，给出形象直观的解释及说明。

The widespread price controls instituted by Beijing to combat inflation, the number one economic priority of the central government at the moment, have in fact helped worsen the present crisis.

为了对抗通胀，中国已实施了广泛的价格控制措施，这已成为中央政府当前最重要的经济任务。但它实际上使得当前危机更加恶化。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。