查询词典 methanol

With methanol as solvent and NaOH as catalyst,the influence of the concentration of NaOH ,reaction temperature and reaction time to the alcoholysis of polyvinyl acetate is studied by the homogeneous design procedure.

使用均匀设计法研究了甲醇作为溶剂，氢氧化钠作为催化剂时，聚醋酸乙烯酯醇解反应中碱的物质的量比、反应温度和反应时间对聚乙烯醇醇解度的影响。

During the Polyvinyl Alcohol producion, the product cannot be polymerized by the monomer directly. Generally, it can be obtained by alcoholysis of poly vinyl acetate in the solution of methanol.

在聚乙烯醇生产过程中，因产品不能由其单体直接聚合得到，通常采用聚醋酸乙烯在甲醇中醇解得到，该过程副产大量的醋酸甲酯。

An aliquot of plasma (0.4 mL) was added to 0.4 mL of water, and the resulting solution was applied to a previously activated (3 mL of methanol followed by 6 mL of water) 100-mg Oasys cartridge.

一个aliquot血浆（ 0.4毫升）加0.4毫升水，以及由此产生的解决方案适用于先前激活（ 3毫升的甲醇其次是6毫升水） 100毫克Oasys墨盒。

An aliquot of the reaction mixture was injected into a C18-column with a mobile phase consisting of 0.05 molL^(-1) phosphate buffer (pH 5.5)-methanol (65:35, V/V) and detected at 235 nm.

土壤样品用0.6 molL^(-1) KOH提取，经对甲基苯磺酰氯衍生化后，注入C18柱中分离，用紫外检测器在235 nm波长检测，流动相组成为0.05 molL^(-1)磷酸盐缓冲液(pH 5.5)：甲醇＝65：35。

There are many types of fuel cells such as Metal hydride, Alkaline, Direct methanol fuel cell and etc with different characteristics.

有许多类型的燃料电池，如金属氢化物，碱性电池，直接甲醇燃料电池等具有不同的特点。

This paper discusses the blending effect of methanol with straight-run gasoline, alkylate, catalytic cracked gasoline and reformate on octane number, saturated vapor pressure, compatibility and stability of the blended stocks.

本文论述了甲醇与直馏汽油、烷基化油、催化裂化汽油以及催化重整汽油调合时的辛烷值调合效应、饱和蒸气压调合效应，以及调合油的相溶性、稳定性。

Aloin is unstable when dissolved in methanol, acetyl acetate was appropriate for use as the solvent in standard solution.

芦荟苷在甲醇溶剂中不稳定，甲醇不适宜做芦荟苷标准样的溶剂，宜改用乙酸乙酯。

The methanol molecule has the best catalytic effect among the three molecules followed by the water and ammonia molecules.

其中甲醇的辅助效果最佳，其次为水和氨分子。

Canada is rich in natural resources, for ammonia, urea, methanol and ethylene production.

加拿大有丰富的天然气资源，用于合成氨、尿素、甲醇和乙烯的生产。

The effect of pore structure in the anode catalyst layer on the performance of direct methanol fuel cell was investigated using ammonium carbonate as a pore former .

采用碳酸铵作为造孔剂，研究了阳极催化层孔结构对直接甲醇燃料电池性能的影响。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。