查询词典 sulfuric acid

Animals with alkali and sulfuric acid. The result was a product called stearin.

文章第一句同时也是一个时间的分水岭，告诉我们19世纪蜡烛工业的变革是怎么样的。

Stearin is harder and burns longer than unrefined tallow. This breakthrough meant that it was possible to make tallow candles that would not produce the usual smoke and rancid odor.

在19世纪早期到中期，蜡烛处理工艺使用alkali和sulfuric acid来提炼tallow，提炼后的产品就是stearin，stearin比未经提炼的tallow坚硬而且燃烧得更久。

Main contents and conclusions of this dissertation are as follows:(1) SPEEK with different degree of sulfonation was synthesized by using sulfonation reactions of PEEK and concentrated sulfuric acid.

主要的研究内容和结论如下：1、以PEEK为原料、浓硫酸为磺化剂，制备了不同磺化度的磺化聚醚醚酮。

The factors which affacted the sulfonation of superfine polystyrene via concentrated sulfuric acid route were considered and discussed.

研究了浓H2SO4对SfPS粒子的磺化工艺，探讨了影响SfPS磺化的主要因素。

It's the only known organism that lives in sulfuric acid.

它是目前唯一已知的存活于硫酸中的生物体

China Sulfuric Acid Industry Association, Beijing 100011, China

中国硫酸工业协会，北京 100011

There are several layers of clouds many kilometers thick composed of sulfuric acid.

有几个层次的云彩多公里厚的组成硫酸。

The design of the main method used in manufacture of sulfuric acid exposure.

本设计主要采用的接触法制造硫酸。

Sulfuric acid has many applications, and is one of the top products of the chemical industry.

硫酸有许多用途，是化工产业的优良产品。

The reaction of iron with sulfuric acid is a case of replacement.

铁和硫酸的反应是一种置换反应。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。