查询词典 quantitative method

OBJECTIVE:Introduce spectrophotometry method for quantitative determination of pethidine hydrochloride.

王锦目的：用紫外分光光度法测定盐酸哌替啶制剂的含量。

The quantitative results were obtained using external standard calibration curves. Results The linear range of the method was from 0.1 to 2.5 mg/mL for permethrin.

结果 氯菊酯浓度在0.1～2.5 mg/mL浓度范围内与峰面积呈良好的线性关系，平均回收率99.33%，RSD 0.49%。

An HPLC method using an external standard was developed for quantitative determination of the pirimicarb residues in wheat seed .

采用甲醇超声波提取和液液分配技术净化提取物，反相高效液相色谱测定，建立了检测小麦籽粒中抗蚜威残留量的方法。

This paper presents a quantitative analysis method of fissure volume density through strain energy obtained from numerical simulation.

选用裂缝体积密度作为构造裂缝定量化参数，对基于钻井岩心的裂缝体积密度的计算方法作了改进。

To research on quantitative relations between neutral aroma constituents and concentration and quality of aroma of flue-cured tobacco in Panxi tobacco-growing areas, and to offer a new and impersonality method of flue-cured tobacco quality assessment, the authors carried out partial correlation analysis, path analysis and stepwise regression analysis, and established mathematics model and studied the factors of neutral aroma constituents affecting concentration and quality of aroma of flue-cured tobacco in this paper.

为了探究攀西烤烟烟叶中性致香成分与香气质和香气量的定量关系，并为客观准确评价烟叶质量提供新方法，该文采用偏相关分析、通径分析和逐步回归的分析方法，建立数学模型，研究了影响烤烟香气质量的中性致香成分。

This article reviewed the origin and development quantitative trait locus. QTL mapping consist of four main step, that is test design、genetic marker、construction of linkage map and the main analytical method of QTL (candidate gene approach and genome scanning). Also, the progress and prospects of QTL in livestock were discussed

本文对QTL定位技术的产生和发展、QTL作图所包括的4个主要步骤：试验设计、遗传标记的产生、构建连锁图和QTL的检测（主要是候选基因法和基因组扫描法）进行了简要的介绍，并就目前畜禽QTL定位的研究进展及前景作一概述。

Quantitative analysis of the EXAFS spectra showed that the microscopic structure of Znon anatase TiO2 is four coordinate complex, and there are at least two types of bonding based on the average Ti-Zn distances in the second sphere. Two different geometry configurations of single-corner and double-corner for adsorption on the (101) surface cluster were calculated using DFT method.

EXAFS结果表明，Zn在吸附时由自由水合状态下的Zn-O六配位八面体结构向四配位四面体结构转化，中心Zn原子的第二配位层存在两种不同的Zn-Ti距离（R1=0.371和R2=0.332nm）。

In this paper, the main question to be solved is the method of permeability testing of soil cement, and finding the quantitative relation between permeability coefficient and cement content, and the relation between permeability of enforcement soil cement and fiber.

通过对多组水泥土和加筋水泥土试块进行的抗渗试验以及对试验结果的分析，得出下面的结论： 1。

A mapping population of 81 F11 lines, derived from a cross between a japonica variety Kinmaze and an indica variety DV85 by single-seed descent method, was used to detect quantitative trait loci for traits associated with photosynthetic functions.

利用粳稻Kinmaze/籼稻DV85杂交后代单粒传衍生的81个F11家系所组成的重组自交系(Recombinant Inbred Lines，RILs)群体，研究水稻光合功能相关性状的数量性状基因座。

This paper analyzes both wood supply from commodity limber, peasant wood, artificial board and import lumber and demand from main building industry, peasant wood, firewood, export wood. It collect the data of log, converted timber, plywood, fiberboard, shaving board, paper and cardboard, paper pulp and wastepaper output, import and export volume from 2000 to 2005, forming the quantitative result. At last it analyses the cause that wood supply and demand breach produces and gives resolving method.

本研究对木材市场的商品材、农民自用材、人造板和进口材的供给分析以及对木材市场的主要工业建筑业用材、农民自用材和薪炭材和出口材的需求分析，并收集2000~2005年间原木、锯材、胶合板、纤维板、刨花板、纸及纸板、纸浆和废纸产量、进口量以及出口量数据，按照经验比例折算成原木量，得出各年度木材需求总量的定量分析结果，最后分析了木材供需缺口产生的原因和采取的对策。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。