查询词典 ethanol

How to find a high-quality catalyst which can deeply oxidate ethanol fuel was an important research subject, It was also a key factor that the ethanol fuel automobile was extensively used in the country.

研究和开发质优价廉的催化剂并使之能够完全催化氧化乙醇及其中间燃烧副产物尾气是乙醇燃料车在全国推广应用的一个重要前提。

This invention discloses a method for preparing monodisperse oil-soluble surface-modified ferric oxide nanoparticles. The method comprises: mixing ethanol solution of soluble ferric salt with ethanol solution of fatty acid, adding alkali, stirring to obtain precursor of ferric oxyhydrogen fatty acid salt precipitate, and cracking at 210-280 deg.

一种制备单分散、油溶性表面修饰氧化铁纳米微粒的方法，将可溶性铁盐的乙醇溶液与脂肪酸的乙醇溶液混合，加入碱搅拌得前驱体三价铁氢氧脂肪酸盐沉淀；单元前驱体三价铁氢氧脂肪酸盐在无溶剂下直接热解得目标产品。

Biological properties of Panicum virgatum and recent research progress on producing fuel ethanol are introduced. P. virgatum materials pretreatment processing procedure and fermentation for fuel ethanol production are described. Researches indicated that 1 lowland P.

介绍了柳枝稷Panicum virgatum生物学特性和近年来国内外利用其生产清洁生物质能源－燃料乙醇的研究现状，阐述了柳枝稷原料预处理和进行发酵生产燃料乙醇的工艺过程。

Ethanol fermentation from pentose is the key technology which use the plant fibre resources economically and workably manufacture ethanol.

戊糖酒精发酵技术是决定植物纤维资源生产酒精经济可行的关键之一，本课题主要的研究内容是戊糖酒精发酵的菌种筛选、发酵条件的优化及综合应用。

Technology of fuel ethanol production from saccharine material such as starch is already mature. The technology of fuel ethanol production from cellulosestill has some obstacles to overcome,e.g.difficulties in pre-treatment of raw material,problem of pentose fermentation,high cost of cellulose enzyme,etc.

以淀粉等糖类原料生产燃料乙醇的技术已经是完全成熟的技术，而以纤维素秸秆为原料的生产技术尚有一些难点未能克服，比如：原料的预处理困难、戊糖发酵问题、纤维素酶的价格高昂等。

The title compound C_(27)H_(23)FN_(4)O_(2)C_(2H_(5)OH was obtained by the reaction of 1-phenyl-3-methyl-5-pyrazolone with 2-fluorobenzaldehyde in ethanol in the presence of piperidine under microwave irradiation and recrystallization from ethanol.

标题化合物C27H23FN4O2(C2H5OH)是由2分子1-苯基-3-甲基-5-吡唑啉酮和1分子2-苯甲醛微波辐射4 m in，用乙醇重结晶得到。

In this study we use liquefying technique to pretreat corn straw and separate the cellulose and the lignin for ethanol production in order to increase the rate of ethanol.

采用"液化技术"对玉米秸秆进行预处理，将用于发酵制备乙醇的纤维素分离，提高了乙醇的产率。

The paper presents a way that on a diesel engine the fuel ethanol is used blended with gasoline as its additive. On the base of analyzing the physical, chemical and mixing proportion characteristics of ethanol-diesel-gasoline blended fuel, combustion characteristic and the effect on diesel engine performance using the blended fuel with different proportional component are studied on a 135 diesel engine. At the same time, the effect on the diesel engine performance and combustion characteristics using the blend fuel are also studied under different diesel engine parameter.

本文阐述了在柴油机上以汽油为助溶剂应用燃料乙醇的一种方法，在分析乙醇-柴油-汽油混合燃料的物化特性和配比特性的基础上，试验研究了在135柴油机上燃用不同比例的混合燃料对柴油机性能的影响及其燃烧特性；同时，还研究了在不同的柴油机参数下应用混合燃料对柴油机性能和排放特性的影响。

Theoretical plates of propyl alcohol is 9.9 ×104 plates/m; resolution of ethanol and propyl alcohol is 4.66; RSD of correction factor of relative mass is 1.67 % Good linearity with correlation coefficient 0.999 is observed over the range 45.0%-85.0%of ethanol in solvent.

结果：系统实用性实验测得正丙醇理论塔板数为99000，乙醇与正丙醇分离度为4.66，相对质量校正因子的变异系数为1.67％；该方法在乙醇百分含量范围45.0％-85.0％内呈良好的线形关系，相关系数为0.999；平均回收率为100.4％，RSD为1.69％；精密度相对标准偏差为1.74％。

MethodsThe flavonoids were extracted by ethanol from Baise's purslane with ultrasonic wave and ethanol extraction .

方法采用超声波乙醇浸提法从百色马齿苋中提取黄酮类物质，对所提取的黄酮类物质进行验证，并用分光光度法测定含量。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。