Catalysts that lower markedly the activation energy of the reactions are required.

The methods of regeneration and preventing deactivation of catalysts are reviewed briefly.

简要介绍了催化剂的再生和防失活等方面的技术.

The effect of these catalysts is greater at low pressures than at high pressures.

在低压下这些催化剂的作用要比在高压下为大.

The future will see catalysts do even more to keep our environment safe and clean.

今后人们可以看到催化剂在使我们的环境安全和清洁方面会发挥更大作用.

Impurities that promote deterioration of polymers can be foreign materials, such as residues from polymerization catalysts.

促使聚合物劣化的杂质可能是外加的物质, 如残存的聚合用催化剂.

The setting of mechanical specifications for catalysts should take into consideration the needs of the user.

催化剂的机械测试技术规范的制定应考虑到用户的需要.

Many medicines are products of catalysts.

很多内服药就是催化反应的产物.

It is known as catalytic cracking.

这就是所谓的催化裂化.

The Fluid Catalytic Cracking ( FCC ) is the major gasoline-producing process in refinery.

FCC(流化催化裂化 ) 是炼厂生产汽油的主要方法之一.

Glyoxylic acid was rapidly synthesized by catalytic oxidation of glyoxal with H 2 O 2.

在催化剂存在下,用双氧水氧化乙二醛溶液快速合成了乙醛酸.

The dimethylbenzenes are obtained from catalytic reformate.

二甲苯可从催化重整得到.

Hydrogen transfer is one of the characteristics of catalytic cracking reaction.

氢转移是催化裂化的特征反应之一.

There are inherent difficulties in selecting any method as a standard for catalytic surface area determinations.

要选定一种测定催化剂表面积的标准方法具有其特有的困难.

Many other important catalytic parameters were deduced.

可以推导出很多其它重要的催化参数.

The component is the catalytic converter, which has a mandatory part of exhaust systems since 1975.

这个零件就是触媒转换器, 自1975年以来它就成为排气系统中的必备零件.

Catalytic converter an assemble of efficiently controlling the poisonous emissions from internal combustion engine.

催化转化器是降低汽车有害物排放的有效装置.

This paper first describes the effect of evaluation conditions on the catalytic converter performance.

本文首先简述了评价条件对催化转化器性能的影响.

If a catalytic converter suffers road damage, the monolith inside can be cracked.

如果催化裂化炉在运输过程中遭受损坏, 它里面的塑胶制品就有可能被挤裂.

Models of monolithic catalytic converter for controlling automobile emission are reviewed in detail.

摘要对用于控制汽车尾气排放的整装催化转化器的模型研究进行了论述.

The SCR catalytic converter uses the ammonia to transform nitrogen oxide into nitrogen and water.

选择性催化转化器利用氨气把氮氧化物转化为氮气和水.

The catalytic converter can also be destroyed by excessive engine vibration.

发动机的过度震荡也会造成催化裂化炉的毁坏.