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In this paper the deactivation of Y-type zeolite catalyst has been studied in theoretical and experimental aspects.

对苯烷基化过程中Y型分子筛催化剂的失活进行了多方面的实验研究。

The stability of V_2O_5 catalyst and the reason of catalytic deactivation were studied.

考察了催化剂的稳定性和催化剂失活的原因。

The factors which cause deactivation of catalysts are different because of the difference in the conditions of catalytic reactions.

合成甲醇的反应条件不同，造成催化剂失活的原因也有所不同。

Much of the impact of therapy can be related to the "spontaneous" deactivation of the dysfunctional beliefs.

治疗的大多影响可能与功能失调性信念的自发性灭活有关。

Deactivation and its reasons of supported TiO2 photocatalyst in degradation of printing and dyeing wastewater were investigated .

研究了负载型TiO2光催化剂在印染废水降解中的失活及其产生的原因。

The existing problems in deactivation and regeneration process were point out.

指出了目前失活加氢脱硫催化剂再生过程中存在的主要问题。

Conversion and selectivity of catalytic reactions as well as the deactivation rate of the catalyst itself is very temperature-sensitive.

催化反应的转化率和选择性以及催化剂本身的失活速率均对温度十分敏感。

The causes of deactivation of this catalyst during a long period on stream are approached, and its activity can...

还探讨了催化剂长期使用中失活的原因，初步找到了用一氧化碳再生的方法。

The results show that the deactivation rates of catalysts were speeded up with increasing the preparation temperature.

结果表明，随著催化剂制备温度的升高，催化剂失活加快。

The facts that type I compounds could easily undergo deamination reaction to form α-methylene cyclopentanone derivatives and they could react with glutathione to form an adduct provided sufficient evidence for the hypothesis that the compounds acted as masked α-methylenecyclopen- tanones and reacted with biologically important sulfhydry-containing enzymes, and thus produced anticancer activity.

Ⅰ类化合物在稀溶液中极易进行去胺基化反应形成α-亚甲基环戊酮类化合物。并且Ⅰ类化合物于稀溶液中易与谷胱苷肽进行结合，这些事实为Ⅰ类化合物作为隐蔽的α-亚甲基环戊酮与酶进行加成，从而导致酶失活而具有抗癌活性的设想提供了证据。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。