查询词典 tar cancer

Synthetic vanillin is prepared from coal tar, which has no radioactivity.

合成的香兰素是通过处理煤焦油而得来的，是没有放射性的。

Bath additives containing coal tar are particularly helpful in the treatment of psoriasis , although some people do not like the smell.

浴添加剂，含有煤焦油是特别有用，在治疗银屑病，虽然有些人不喜欢的气味。

It was discovered in the late nineteenth century as a derivative of toluene (a solvent derived from coal tar).

它是于十九世纪后期作为甲苯（一种煤焦油的可溶的衍生物）的一种衍生物被人发现的。

The separation and purification processes of 2,6-DMN from coal and petroleum tar are reviewed.

文摘：本文介绍了2，6-二甲基萘的用途和制备方法；综述了从煤焦油和石油中分离提纯2，6-二甲基萘工艺。

A kind of self-made coal tar cleaning agent and its specialty were introduced.

介绍了一种自制焦油清洗剂及其特性，并重点介绍了其在某炼焦煤气厂的实际应用。

Under the oxidative atmosphere, the most of sulfur in coal is transferred into tar.

在氧化性气氛下，脱除的硫主要分布在焦油中；随着氧气体积分数的提高，半焦收率下降的很快，下降幅度要比脱硫率的增加幅度大。

Two methods of distillation crystallization method and gas chromatography to determine the naphthalene content in coal tar oil were introduced.

介绍煤焦油中萘含量测定的两种方法：蒸馏结晶法和气相色谱法，对两种方法的优缺点及分析结果进行了对比。

Ammonia, coal tar and coke are all by-products obtained in the manufacture of coal gas.

氨气、煤焦油、焦煤都是煤气生产过程中的副产品。

For the high nitrogen mass fraction in coal tar,the hydrodenit...

由于煤焦油的氮含量较高，要达到较好的加氢脱氮效果必须在高温、高压和低空速下进行。

Hejin City is the country's largest high-quality coal tar origin.

河津市是全国最大的优质煤焦油产地。

Sighting of a white rat is considered auspicious and tourists flock the temple for its unusual attraction.

一个白色的老鼠瞄准被视为吉祥和游客涌向了它不同寻常的景点的寺庙。

Famous for penetrating in the private life of his subjects Martin Parr manages to expose them in every detail bringing up a different image of our society.

在他的臣民马丁帕尔私人生活的著名管理渗透到每一个细节揭露他们造就了我们社会的不同形象。