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Keywords polybasic acid;titration curve;calculating and plotting; 多元酸;滴定曲线;计算绘制;
Polyester resins are the condensation products of polybasic acids and polyols. 聚酯树脂是多元酸和多元羟基化合缩聚而成。
Keywords polybasic weak acid;ionization constant;nonlinear fitting; 多元弱酸;电离常数;非线性拟合;
The chemical layer that I have mentioned above is formed by compounding polyester, nylon, or cellulose fabric with polybasic acid derivative so that it could efficiently absorb water and smell. 所述的化合层之化合物为利用聚酯、尼龙或纤维素织物与多元酸衍生物化合处理,以化合成具有吸水、吸味功效之化合层。
Alkyds are the condensation product of polybasic acids and polyhydric alcohols (polyls). 多元醇酸树脂由多元酸和多元羟基缩聚而成。
Objective To analyze polybasic acids and higher fatty acids of Rosa roxburghii Tratt fruit. 目的分析刺梨果中多元酸和高级脂肪酸的组成。
A new method for the total analysis of the polybasic acids and higher fatty acids in hawthorn fruit by gaschromatography-mass spectrometry(GC-MS)was developed. 采用硫酸甲酯化处理山楂果样品,二氯甲烷作萃取剂,用气相色谱-质谱联用法对山楂果中的多元酸和高级脂肪酸进行了全面分析。
Keywords hawthorn fruit;polybasic acid;higher fatty acid;gas chromatography-mass spectrometry;analysis; 山楂果;多元酸;高级脂肪酸;气相色谱-质谱联用;分析;
Keywords eliminating-item and simplifying equation method;polybasic acid and polybasic alkali;ecidity calculation; 消项简化方程法;多元酸碱平衡;酸度计算;
Methods The polybasic acids and higher fatty acids in Rosa roxburghii Tratt fruit were methylated and then the acidic compounds were isolated and identified by capillary GC-MS method. 方法采用硫酸甲酯化处理刺梨果样品,用气相色谱-质谱联用(GC-MS)分析其多元酸和高级脂肪酸含量,用面积归一化法得出各有机酸的相对含量。
Eleven kinds of polybasic acids and higher fatty acids of 39 samples of flue-cured tobacco in Yunnan and 2 overseas samples in 2004 were classified by the method of cluster analysis. 摘要对2004年39份云南烤烟样品及2份国外烤烟样品的多元酸和高级脂肪酸进行聚类分析。
Keywords Polybasic aluminium bronze;Hot rolling plates;Technology development; 复杂铝青铜;热轧板;工艺试制;
Keywords polybasic copolymer;filtration loss controller;additive for cement slurry; 多元共聚物;降失水剂;水泥外加剂;
Simultaneous Determination of Content and Conditional Dissociation Constant of Polybasic Acid or Polybasic Base by Potentiometric Titration 同时求出浓度和离解常数的多元酸碱电位滴定法
CRITERION FOR THE FEASIBILITY OF STEPWISE TITRATION OF POLYBASIC ACIDS OR BASES 多元酸碱分级滴定的可行性判据
polybasic acid(polyrotic acid) 多元酸
polybasic acid 多元酸
Keywords: GPRS; GPS; GIS; Protocol; Design?? 关键词：通用分组无线业务；全球定位系统；地理信息系统；协议；设计??
Make bulk changes to keywords, ads, and ad groups. 批量更改关键字、广告和广告组。
Some keywords in SQL are also reserved words. SQL中的一些关键字也是保留字。