查询词典 variable star

A new type of composite CVT( Continuously Variable Transmission) systems, based on dual-mode power-split planetary gear set, is of improved efficiency, power transmutability and speed variable range.

基于正反双向分汇流行星排组的一类新型复合无级变速器系统具有效率高、率容量与速比变化范围大等特点。

It's wise to choose variable names that are related to the purpose of the variable, and that are unlikely to get mixed up typographically.

选择的变量名要能够尽量从字面上表达变量的用途，这样做不容易引起混淆。

Statistical process control method cent is statistical quality control and statistical performance monitoring two parts, what statistical quality control includes to process of single variable count is controlled and be based on statistic to return to is soft measure a technology, method of statistical performance monitoring includes advocate yuan analysis, independent the much more variable and umbriferous technology such as yuan of analysis and statistical control graph.

梗概： 回顾了统计过程控制的发展历史，介绍了统计过程控制的基本概念。将统计过程控制方法分为统计质量控制和统计性能监控两部分，统计质量控制包括单变量统计过程控制和基于统计回归的软测量技术，统计性能监控方法包括主元分析、独立元分析等多变量投影技术以及统计控制图。

Multiple linear regression is the simplest way to build the relationship between the several explanatory variables and response variable. However, MLR often causes the estimated regression coefficients unstable or even unaccessible when the number of explanatory variables is more than that of objects. Especially, the explanatory variables are highly intercorrelated which called multi-collinear data. Therefore, many methods have been developed to analyze multi-collinear data, such as variable selection methods, ridge regression, principal components regression and partial least squares regression.

当要同时建立多个解释变数与反应变数间的关系时，最简单的方式是以复回归来处理，但是当解释变数数目远多於样本数，或者变数之间具有高度相关性时，会使得回归系数的估计变得不稳定甚至无法求得，这样的资料又称为共线性资料，在面临这样的资料时可以利用变数选取的方式降低资料组的维度，或者以脊回归、主成分回归及净最小平方回归等方法来灭种共线性的干扰。

Another robust control tool—the variable structure control theory is also studied in the thesis. The conventional variable structure control theory can not overcome the unmodelled dynamic errors.

仿真表明，这种方法对于系统的非线性特性未知的情况下是有效的，并对系统参数的不确定性以及CMAC神经网络学习存在的误差具有鲁棒性。

Moreover, by using fuzzy control concept in variable-structure system, the chattering problem which exists in most variable-structure systems is subdued, and the system robustness to unmodelled uncertainties and external disturbances is improved.

另外，通过在分散变结构控制系统中引入模糊控制规则减弱了一般变结构控制系统的颤振。

The first case is the variable depth with a fixed notch-width and the second case is variable width with a fixed notch-depth. It can be observed fromthe moment-curvature curve of the first case that the magnitude of the moment is larger for the deeper depth than that for the shallow depth.

由有限元素ANSYS 分析结果可以观察出，在控制固定曲度做循环弯曲负载时，弯矩－曲度曲线图显示出，在固定凹槽的宽度，当深度较浅时，达到设定的控制曲度所需施加的弯矩相对於凹槽深度较大的圆管要大的多。

The use of a variable like val to control a loop happens so often that the language defines a second control structure, called a for statement , that abbreviates the code that manages the loop variable.

由于需要频频使用像 val 这样的变量控制循环，因而 C++语言定义了第二种控制结构，称为 for 语句，简化管理循环变量的代码。

In order to resist the noise data, Variable Precision Rough Set Theory was proposed. In this paper, the Variable Precision Rough Set Theory is applied to judge the development degree of a region. It can resist the interference of the noise and get simple rules, but does not change the ability of assorting.

为了提高在实际应用中对噪音数据的适应能力，Ziarkio提出了可变精度粗集理论，本文把可变精度粗集理论应用在一个判断地区综合发展程度的系统，实现了抗噪音的干扰，同时也大大简化了原始数据集。

At the present time, these multiple variables are often switched into a dichotomized variable according to some classification criteria, and then the dichotomized variable is analyzed.

然而，对于复杂性状，我们往往很难判断这种定性划分的准则同疾病基因的遗传有何关系，所以用多个原始变量的数据来定位易感基因可能更为理想。

"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。