查询词典 sulfuric

And take six aquation hydrogen nitrate zinc as raw material , add the ammonium sulphate being unlike thickness respectively, the method adopt a microwave to heat comes to the preparation zinc oxide , discuss with sulfuric acid ion concentration changing to zinc oxide structure and shape appearance effect.

以六水合硝酸锌为原料，分别加入不同浓度的硫酸铵，并采用微波加热的方法来制备氧化锌，探讨随着硫酸根离子浓度的改变对氧化锌结构及形貌的影响。

Learn three important sulphonation processes, the emphases are the method of excessive sulfuric acid sulphonation and the azeotropy dewater sulphonation.

了解三种重要的磺化生产工艺，重点介绍硫酸作磺化试剂的过量硫酸磺化法和共沸去水磺化法的工艺。

If even a trace of benzilic acid remains the sulfuric acid will turn red.

如果即使是微量的benzilic酸是硫酸将变成红色。

If even a trace of benzilic acid remains the sulfuric acid will turn red.

微量的benzilic酸会把硫酸变成红色。

The proton exchange of the polarized benzoquinone radical in solution c ontained sulfuric acid was studied.

研究了含硫酸溶液中极化的苯醌自由基与溶液中的质子发生的交换现象。

Benzothiophene was selected as model sulfide and dissolved in n-octane to form model diesel, hydrogen peroxide/formic acid/sulfuric acid were used as the oxidative system.

在苯并噻吩／正辛烷配成的模拟柴油中，以过氧化氢／甲酸／硫酸作氧化脱硫体系，考察了硫酸的催化性能以及反应条件对氧化脱硫率的影响。

Their specific optical rotation is higher than 1, 1'-binaphthyl monomer in concentrated sulfuric acid, and increased with the excess enantiomer percentage of monomers increased, but the direction of rotation is not same with their monomer.

它们的结晶度较低，在浓硫酸中的旋光活性远大于联萘单体，其旋光值与聚合物手性单元的过量比例成线性关系，但旋光方向却与单体不同。

The traditional production process for biurea is sulfuric acid method,in which such problems as serious corrosion of equipment,difficulty at sewage treatment,and expensive environmental protection exist.

传统的硫酸法联二脲生产工艺存在设备腐蚀严重、污水处理难度大、环保费用高等问题。

The results showed that more effective measures are the blading pierced seeds and sulfuric acid soaking seeds 50min.

结果表明：刀片破皮和98%浓硫酸浸种50min效果较好，处理后种子发芽率分别达到98.0%和98.7%。

Central composite design/response surface methodology can be used to evaluate the feasibility and applicable conditions of the anthrone-sulfuric acid method to determine the polysaccharide isolated from Bletilla striata using Dextron T20 as a standard substance.

星点设计－效应面法可以用于评估以葡聚糖T20为标准品、蒽酮－硫酸法测量白芨多糖含量的可行性，并优化测量含量的适用条件。

Hanna: That's over now, isn't it?

都结束了，对吗

You must be ill. You look so pale.

你一定是病了，你的脸色苍白。