查询词典 first-order reaction

Aminoacyl-tRNA synthetase is a class of ancient proteins, catalyzing the first reaction of protein biosynthesis.

氨基酰-tRNA合成酶是一类古老的蛋白质，催化蛋白质生物合成中的第一步反应。

The anion of tungstotantalate was synthesized for the first time as K_9TaW_(11)O_(40)·15H_2O by the reaction of soluble potassium tantalate and porous white tungstic acid in aqueous solution.

在五氧化二钽基体中加五氧化二铌配成标准溶液，与氟钽酸钾样品在相同条件下经系列处理后进行纸上色层分离，分离后与样品直接进行目视比色。

It is revealed through experiments for the first time that the combustion of Fe〓O〓-Al thermite in SHS-gravitational process is mainly controlled by a gas phase reaction.

本文系统研究了SHS—重力法制备陶瓷复合钢管的技术和装备，制备出内衬陶瓷的弯管和变径管，应用在耐磨、耐蚀领域中。

Then, the application of MCM-22 in OATS process was investigated. It was found out that with SAR increasing, thiophen conversion first increased and reached maximum at SAR of 75 (98.3%), and then reduced. A postulation was raised that the alkylation reaction mainly occurred at the external surface of MCM-22 zeoltie. The application of MCM-22 in ABLPG process was also investigated.

考察了MCM-22在模拟FCC汽油烷基化脱硫方面的应用，研究表明，随着硅铝比的增加，其噻吩烷基化活性在硅铝比为75时达到最大(98.3%)，硅铝比继续增加，活性则不断降低，提出了噻吩烷基化过程主要发生在分子筛外表面的观点。

Somehow, my first reaction when I heard this tale was not to tsk tsk the youngsters for not caring for the elderly but one of amusement.

当时候，我的第一反应不是要数落那些年轻人的不是，说他们不懂得敬老，而是觉得她有一些些的无聊。

That is , the Hill reaction activity and unicycle photosynthetic phosporylation activity declined under water stress, but the ATPase activity declined at first and then increased rapidly.

这可能是由于脱水使叶绿体膜蛋白质变性，抑制了光合磷酸化作用而导致ATP酶话力增强。

In the first two cases the reaction is unilateral .

在前两个例证中，这种反应是单边的。

In spite of the fact that the first patent on transient operation of chemical reactor was applied in 1938,the forced unsteady state operation of chemical reactors as an attractive novel technology and its associated profound theory are a new area of study in chemical reaction engineering.

尽管1938年就申请了化学反应器动态操作的第一个专利，但是化学反应器人为非定态操作作为一种具有吸引力的新技术和与之相联系的复杂理论仍然是化学反应工程研究的一个新领域。

The dissertation includes two parts as follows:In the first part, the synthesis of the uracil derivatives : 5-methoxyuracil and 5-methyluracil was investigated, and the reaction conditions were optimized, thus the overall yields were higher than before.

本论文分为两大部分：第一部分：对尿嘧啶类衍生物5-甲氧基尿嘧啶和5-甲基尿嘧啶的合成进行了研究，并分别进行了工艺优化设计，使这两个化合物的合成总收率均比原来提高。

By the method, we first simulate the pigment distribution with a modified reaction-diffusion system, which is integrated with venation information.

首先使用经植物脉络信息修正后的反应-扩散系统对色素分布进行仿真，然后用与传统的基于手绘或照片等不同的基于色素吸收光谱的方法来获得数据。

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。