参数变量

The local averaging method is used to discretize the random field, correlated random variables are transformed to a set of uncorrelated normalized random variables, combining viscoelastic stochastic finite element method with H-L algorithm, the reliability of solid propellant grain is studied with different random parameters.

为了讨论各类随机因素对药柱结构可靠性的影响，采用局部平均法离散参数随机场，并通过相关结构分解成归一化的独立随机变量，将可靠度指标算法和粘弹性随机有限元法相结合，进行了固体推进剂药柱的结构可靠性分析。

To reduce the number of design variables,the sensitivity of both natural frequency and mode shape vector to component geometry parameters were derived respectively.

为优选设计变量，分别推导了固有频率和振型矢量对其几何参数的灵敏度公式。

Processing data and selecting parameters as the variables of X-axis, Y-axis and Z-axis respectively, D.

数据处理，优选参数分别作为X、Y、Z轴的变量；D。

Titanus in Europe as the source data, the above three bioclimatic variables as parameters, BIOCLIM as algorithm, the distribution of S. titanus in North American was analyzed in order to test whether these parameters are appropriate or not. The results revealed that the Great Lakes region of USA and Canada and the Finger Lakes region of New York State were the best habitat for S.

结果表明：以月平均温、最冷月最低温和最热月最高温变量为参数，以欧洲的已知分布为源数据，用 BIOCLIM 算法可以准确预测出包括美国和加拿大的大湖区和纽约州的芬格湖群在内的大片区域是葡萄带叶蝉在北美洲的适生区。

In this paper, an electrical coordination device, first developed in China, is introduced.Two types of bivariant function generators are explained in detail

本文介绍了电气协联的构成、基本工作原理和特点；介绍了构成电气协联各环节的工作原理和参数选择方法；比较详细地介绍了两种双变量函数发生器的构成原理和实用电路；列举了有关的试验数据和曲线。

This paper presents the methods based on the AR model of adaptive algorithm and multi-variable AAR model algorithm to extract feature information which is related with ERD/ERS in EEG.

将脑电信号中事件去同步化/相同步化现象作为特征信息，深入讨论基于AR模型的自适应算法和多变量参数AAR模型算法在脑电信号特征提取中的应用。

The neural network's outputs included the corrosion-inhibition efficiencies of isoquinoline and its hydroxyl and carboxyl derivatives for iron electrode in HCl solution or electrode parameters which were determined with electrochemical methods in 1.0 mol·dm-3 HCl solution at 30℃.

以缓蚀剂分子氮净电荷、自由价、亲核前沿电荷密度等量子化学参数为输入变量，考察了异喹啉及其羟基、羧基衍生物在30℃，1.0mo1·dm~(-3)HCl溶液中对铁的缓蚀效率，建立了相应的预测模型。

Further, relied on the analysis of dynamics of the system, a mathematical model structure with some unknown physical parameters was derived and a state space equation was approximated by using linearize method and state variable technique.

通过系统的动力学分析，推导了一个含有某些待定参数的数学模型结构，并应用线性化和状态变量技术求得了系统的状态方程式。

As an efficient 2-D capacitance extract method, ES-MEI can solve a multiconductor in multilayered dielectric media problem using the comparable unknown number like in the integral equation method as well as the sparse matrix like in FD.

作为进行二维电容参数提取的有效方法，使其能以与积分方程法相当的变量数以类似有限差分法的稀疏矩阵处理分层介质中多导体传输线的电容提取问题。

MethodsBy means of orthogonally rotational combination design, microwave extraction mathematical simulation model was concluded by the linear regression analysis.

响应面法是采用多元二次回归方程来拟合因素与响应值之间的函数关系，通过对函数响应面和等高线的分析，能够精确地研究各因子与响应值之间的关系，寻求最优工艺参数，解决多变量问题的一种统计方法［3］。

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。