查询词典 comparison method

In comparison with the traditional method forsulfuric acid catalysis, the new method is evidently much more advanced,simpler, safer and more easily purificatory.

与传统的硫酸催化法相比，具有操作简单、安全、易纯化、产率高及成本低等优点。

Research purposes: To find out a simple and feasible computing method of skew frame to guide its design. Research methods:This paper analyzes the skew frame with 2D rigid frame and 3D space model of thick plate element with MIDAS Civil structure design system,and their results have been contrasted with comparison method.

随着交通运输事业的飞速发展，交通路网四通八达，铁路速度的提高及行车密度的加大，使用地少，投资小，施工方便的框架结构被大量采用，斜交框架结构日益增多，但是由于斜桥计算尚未形成完整的理论体系，这给铁路斜交框架立交桥的设计带来很大的困难。

By comparison recoveries of several sequential extraction procedures and selectivity of extractants for thorium in soil and scoria, Martínez-Aguirre's sequential extraction method was adopted for quantitative analysis of thorium fractions, then the optimization and evaluation of the sequential extraction method were performed.

分别采用Tessier、BCR和Martínez-Aguirre形态萃取方法对土壤和样品中钍的形态进行分析，通过对总量的回收率和萃取剂选择性比较，选择了Martínez-Aguirre连续萃取法定量样品中钍的形态，并对其进行了优化和评价。

A method was developed for the towage resistance calculation of BFP with special structures, i. e. separate the resistance into wind pressure resistance, underwater shape resistance and underwater friction resistance. The comparison between calculation and towing model test indicates that this method is accurate.

发展一种适合于计算特殊结构桶形基础平台拖航阻力的方法，分别考虑风压阻力、水下形状阻力和摩擦阻力；与平台拖航阻力模型试验结果的比较表明，该方法具有较高的精度。

In the analysis, it adopted the contrast analysis with the same thickness diaphragm wall in deformation. It places the analytical emphasis on the stress distributing of the crown and springe in bearing loads. And it gives the comparison between this method and project simplified method.

文章在分析中，变形采取了与相同厚度地下连续墙进行比较分析的方法；受力主要对拱冠和拱脚的应力分布进行了分析，并与工程简化算法进行了比较。

Quantitative methods are dominative in foreign tourism study, while Chinese researchers rarely use it for lack of training on statistics knowledge. However, quantitative research is a method which approaches to science more. In comparison with the subjectiveness of qualitative research, it is an objective, systematic and accurate method.

定量方法是国外旅游研究的主导方法，国内研究者由于缺乏统计知识的训练而较少使用定量方法，但定量研究是更接近于科学的研究方法，相对于定性方法的主观性，定量研究是一种客观的、系统的、精确的研究方法。

Then, a comparison is made between Undermined Lagrange Multiplier Method and Substitution Method, and it explains that these two methods have the same actions on cancelling and releasing restrictions.

比较了变分学中的Lagrange乘子法与代入法，说明二者在消除约束和放松约束方面具有相同的作用。

Comparison has been done about the sample selecting of the partial duration series method and the annual maximum series method by using the statistical simulations. The effect of different threshold values on the frequency analysis results has been studied.

本文运用统计试验方法对部分历时序列法与年最大值统计法两种不同取样方法的比较、不同阈值对频率分析结果的影响等方面进行了研究。

In order to calculate the integral of the Planck's blackbody formula within a limited region, trapezoid method and Simpson's method two kinds of numerical integral methods were used, and the analysis and comparison were carried on.

对普朗克黑体公式有界域内的积分，利用梯形法和辛普森法两种数值积分方法进行了分析和比较。

To explain the computable of correlated noise attenuation by wavelet analysis; to give adaptive wavelet shrinkage algorithm on basis of threshold. We discuss three thresholds'choice; namely eigenvalue, unbiased risk estimator and hitograph method. We give comesponding experiments'analysis and comparison. It shows that our method is reliable.

阐述了小波分析去相关噪声的可行性；给出了基于阀值的自适应小波收缩法，讨论了三种阀值的选取；论述了特征值法，无偏的风险估计与直方图法，给出了相应的实验分析与比较，说明了该方法是可行的。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了