ethyl的例句大全

The carbon atom of ethyl diazoacetate is not only electrophilic and nucleophilic, but also is a dipolar ion, so the reaction about it is varied.

重氮乙酸乙酯的碳原子既具有亲电性又具有亲核性，而且是一个偶极离子，所以它的反应是多种多样的。

Ethyl Hexanoate extraction: On basis of comparing product-collecting methods, vacuum distilling was selected and used successfully.

己酸乙酯的提取：在比较了蒸馏产物分离方式的基础上，成功地用减压蒸馏提取出己酸乙酯。

At present, iron and cerium-containing HMS by molecular assembly in themselves with the template reagent of dodecyl amine in the course of the hydrolytic coagulation of ethyl silicate ( TEOS) was primarily prepared.

采用中性伯胺（DDA）模板剂，在硅酸四乙酯（TEOS）的水解聚沉过程中，将双元金属Fe、Ce引入中孔分子筛骨架中，首次原位合成了分子自组装Fe/Ce-HMS。

SYNTHESIS OF N-ETHYL-m-TOLUIDINE BY DIETHYL SULFATE& The Serial Studies on N-Alkylation of Aromatic Amines(ⅳ)

硫酸二乙酯法合成N-乙基间甲苯胺&芳胺N-烷基化研究（Ⅳ）

The main components of paint spray booth emissions were toluene, xylene, ethyl acetate, butyl acetate, butanol, acetone, and methyl propyl ketone.

该汽车厂喷漆车间废气中的主要组分为甲苯、二甲苯、乙酸乙酯、乙酸丁酯、丁醇、丙酮和甲基丙基甲酮。

An In-line Multidimensional Gas Chromatography Method for the Analysis of Steam Cracking Gases Determination of Ethyl Carbamate in Alcoholic Beverages With Multidimensional Gas Chromatography/ Isotopic Dilution Mass Spectrometry

热裂解乙烯气的在线多维色谱分析用多维色谱-稳定同位素稀释质谱联用技术测定酒中氨基甲酸乙酯

Solid phase extraction method was recommended by OIV, but in the OIV method, anhydrous ethanol, one of the reagents, contained ethyl carbamate in itself. Therefore, there was drawback in this method.

国际葡萄与葡萄酒组织（OIV）推荐的方法为固相萃取柱方法，方法中应用的试剂之一无水乙醇本身含有氨基甲酸乙酯，因此存在一定缺陷。

Study on Ethyl Carbamate Changing Trend in Wines During Brewing Process

葡萄酒酿造过程中氨基甲酸乙酯含量变化趋势的研究

Investigation on the Formation of Ethyl Carbamate in Grape Wine and Wine Quality Control

葡萄酒中氨基甲酸乙酯形成及质量控制

Research Advancement of Ethyl Carbamate in Fermented Food

发酵食品中氨基甲酸乙酯的研究进展

Determination of ethyl carbamate in alcoholic beverages using HS-SPME gas chromatography-mass spectrometry

固相微萃取气质联用法测定酒精饮料中氨基甲酸乙酯

Residue level of ethyl carbamate in fermented foods

发酵性食品中的氨基甲酸乙酯含量调研

Principle of One-Step Preparation and Development of Highly Substituted Ethyl Cellulose

高取代度乙基纤维素的一步法合成机理及研究

Application of electrospun ethyl cellulose fibers in drug release systems

电场纺丝法制备药物缓释乙基纤维素纤维的研究

Drug release rate decreased as the viscosity of ethyl cellulose increased.

囊材粘度增加，药物释放速率降低；

Solvent process synthesis of supper high and low viscosity of hydroxyl ethyl cellulose

超高超低粘度羟乙基纤维素的液相合成

Esters of ethyl alcohol with acid-function organic compounds of sub-Chapters I to VII are to be classified in the same heading as the corresponding acid-function compounds.

乙醇与本章第一分章至第七分章的酸基有机化合物所构成的酯，应按有关酸基化合物归类。

Carotenoids were separated by linear gradient elution using ethyl acetate and water-acetonitrile ( 1:9, V/ V) as mobile phase.

类胡萝卜素亦采用线性梯度洗脱，以乙酸乙酯作为A相，B相为乙腈-水（体积比9∶1）。保留时间、相对保留时间、光谱法、加标定性，内标法定量。

Syntheses and Characterizations of 1-Methyl-1-Ethyl-3-Butenyl Cyclopentadienyl Lanthanide Dichloride Complexes

1-甲基-1-乙基-3-丁烯基环戊二烯基稀土二氯化物的合成与表征

We use N-ethyl carbazole as the electron donating group, and the cyanoacetate as the electron-withdrawing group, connecting the two parts together by converting different II bridge bonds.

以n-乙基咔唑作为供电子基团，氰基乙酸为拉电子基团，通过变换不同的∏桥键来合成。