多变量的

A multivariate vector autoregression model is established, in which energy is first added into the Dobb-Douglas production function as an independent variable to examine the relationship between energy and the economic growth of China.

首次将能源作为新的变量引入Cobb-Douglas生产函数，建立了多变量自回归模型，对中国经济增长与能源之间关系进行研究。

A multivariate model was then used to identify peri-OLT variables independently correlated with post-OLT length-of-stay.

此后，我们又运用多变量模型来鉴别围手术期变量与术后住院时间之间的独立关系。

In reliability-based optimization problems of a ship's longitudinal structural design, there are lots of discrete variables and continuous variables. This kind of mixed-discrete non-linear optimization problem containing discrete and continuous variables has long been payed attention to, which is more difficult to solve when a number of reliability constraints are taken into account.

在船舶纵向结构的可靠性优化设计中，含有许多离散型设计变量和连续型设计变量，这种含有两种不同性质设计变量的大型结构物的混和优化问题，一直是人们瞩目的难题，尤其是考虑了多个可靠性约束条件之后，求解这种非线性优化问题就更为困难。

Due to the complexity of the nonlinear system,it is classified as five kinds of discrete nonlinear multi-variable system according to nonlinear operator.

鉴于非线性多变量系统的极端复杂性，将离散的非线性多变量系统按非线性算子的不同分为五类。

The model of principal components is built up by applying a method of principal component analysis and by extracting the principal character of process variable to condense process data of multi-variables in a process of chemical polymeric production.

对聚合生产过程中的操作变量进行主元分析，提取过程变量的主要特徵，建立主元模型，可实现对多变量过程数据的压缩。

In this paper we have found the main component s in a n -dimension random vector X , the so called main compon ents don′t contain linear relation and the others of X can be expressed as the linear combination of the main component s.

本文提供了在多维随机变量中寻找主成分的一种方法，证明了其余分量均可表示为主成分的线性组合，解决了多维随机变量的各个分量之间所存在的线性关系问题。

We try to introduce the concept of compositive variable and fittness of land-use and to define the spatial value of land, and in order to find the compositive variable for each grid zone by which the land-use for each grid zone can be specified. We apply the the second family theory of multivariate analysis.

本文导入合成变量与适地度的概念来定义土地的空间价值，以多变量解析中之数量化理论第II类来求出每一方格分区的合成变量，以做为判定各方格小分区内可做为何种土地使用的依据。

Major topics covered are: basic concepts of probability, sample space and events, axioms of probability, random variables, discrete and continuous distributions, joint and marginal distributions, numerical characteristic for random variables, the weak law of large numbers, central limit theorem, basic concepts of statistics, parameter estimate, hypothesis testing and regression analysis.

本课程的基本内容有：随机事件及其概率、随机变量及其分布、多维随机变量及其分布、随机变量的数字特征、大数定律与极限定理、数理统计的基础知识、参数估计、假设检验、回归分析。

The HFE cryptosystem presented by Jacques Patarin in 1996 has long been regarded as the most promising one of multivariate cryptosystems,and is a promising public key cryptosystem with many practical applications:very fast or very short digital signatures,fast public key encryption,etc.

多变量密码系统设计与分析是近年来密码学研究领域中的一个非常活跃的研究方向，其中基于有限域上多变量二次方程组的求解问题设计密码系统并对其进行分析是这一方向的一个重要内容。

For the process of synthesizing of Phosphonic Acid Dimethyl, the significance of application of MSPC on it is discussed, the parameters and original data are deduced and estimated, and process monitoring and diagnostic simulation are given based on simplified model.

对于亚磷酸二甲酯生产过程，论述了对其进行多变量统计过程控制的意义，对该生产过程的物性参数和初始数据进行了推导和估计，并在经过简化的生产控制模型基础上进行了多变量统计过程监控和诊断仿真。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。