查询词典 substitution method

In addition, the influence of Al, Ga isomorphous substitution on the 29Si NMR spectra of zeolite was investigated by ab initio method.

最后用ab initio方法研究了Al、Ga同晶取代对分子筛29Si NMR谱的影响。

A new normalization method towards instruction substitution that was a commonly used metamorphism approach was proposed.

针对等价指令替换常用变形技术提出了相应的归一化方法。

Regressive method of orthogonal conic substitution with 5 factors had applied to study the effect of different planting density and different application rate of N, P2O5, K2O and organic manure on the grain yield and economic benefit of spring corn, and the simulation model of yield formation of spring corn in the medium fertility field was set up.

2005年在长沙采用5因素2次正交旋转回归设计方法，研究了不同密度和氮肥、磷肥、钾肥、有机肥不同施用量对春玉米产量与经济效益的影响。

Based on the above work, a method is presented for translating LFC function definitions into the intermediate representation, which includes analyses of recursive parameters and definition forms of functions, parameter substitution, representation translation of patterns and expressions, transformation of function definitions from incomplete construction forms to complete construction forms, and pattern-matching translation.

在此基础上，设计了LFC函数定义到中间表示形式的翻译和变换方法，包括对函数递归参数和定义形式的分析，参数一致化，模式和表达式表示形式的翻译，部分构造式到完全构造式的变换，和模式匹配翻译等。

Based on the power series expansion of the general flexible matrix of the sub-system, a general expression of the dynamic stiffness matrix of the reduced model was derived from the exact expression of the reduced model for the direct substitution dynamic condensation methods. The general expression was also expressed as a power series of the unknown eigenvalues. After that, the validity and error of the Guyan condensation method were analyzed.

对于动力缩聚直接代入法，本文从降阶模型的精确表达式出发，利用子系统广义柔度矩阵的幂级数展开式，导出了降阶模型动刚度矩阵的一般表达，并把它表示为未知特征值的幂级数形式，在此基础上对 Guyan缩聚法的适用范围和误差进行了一般分析。

Kdr resistance and determination of frequences of kdr gene in house fly field population L1014F is the most common amino acid substitution in the kdr allele. The frequency of the L1014F kdr allele was determined by the method of PASA in fourteen field populations of houseflies with resistance factors at LD〓 for pyrethrin/ piperonyl butoxide and bioresmethrin/piperonyl butoxide from 4 to 29 and 2 to 98, respectively.

击倒抗性及kdr基因频率在家蝇野生种群中的检测 L1014F是击倒抗性等位基因最常见的突变位点。14个家蝇种群对除虫菊酯／胡椒基丁醚和苄呋菊酯／胡椒基丁醚的LD〓抗性倍数分别为4到29和2至98。

Meanwhile, a novel method was developed to introduce oligoethyleneglycol substitution onto the 3 position of pyrrole.

同时，还发展了一种在吡咯3位引进寡聚乙二醇链的新方法。

By means of input - output production function, the Constant Elasticity of Substitution production function of rank two is established in this paper, so it provides a method of assessment on the driving function of construction investment to urban economy, which meets the characteristics of urban construction and overcome the limitation of statistical material.

将CES生产函数应用于城市建设经济分析，推导并建立了用于测定城市建设投资的二级常数替代弹性CES生产函数模型，提供了从数量角度研究城市建设投资对城市经济拉动的方法，反应了城市建设的特殊性，克服了城市建设投资统计资料不健全的缺陷，弥补了以往对城市建设投资规律认识的不足。

The substitution is made of the interval wavelet basis for the compact one in order toproduce the basis of Sobolev space with the lower condition number,which will improvethe speed and the accuracy of the linear system made by wavelet Galerkin method.

我们在小波Galerkin法中用区间小波替代J.Xu用的I.Daubechies的紧支正交小波来生成Sobolev空间及H1的小波基，使基的相关性大大减小，进一步使刚度矩阵的条件数减少，从而提高了线性方程组求解的速度和精度。

The realization structure and selection method of substitution thresholds were presented.

给出了算法的实现结构及替代阈值的选取方法。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。