一级反应

The apparent velocity constant of photocatalytic degradation increased with the increase of initial concentration and then decreased.

光催化降解反应的伪一级速率常数随初始浓度的增加先升后降。

Head-to-Head Gameplay Mechanism: Competitive, turn-based gameplay encourages you to plan, think and strategize against opponents instead of just react like most traditional puzzle games - game difficulty and progression are related to outsmarting your enemies as opposed to difficulty increasing solely through level progression.

白刃战，游戏机制：竞争力，反过来又为基础的游戏鼓励您的计划，战略思考和对对手的反应，而不只是像大多数传统的猜谜游戏-游戏难度和进展都与outsmarting你的敌人，而不是仅仅增加难度通过一级的进展。

According to the above study results, especially the steady operation of two-sludge system（2A/O+N 2SBR）, it can be proved that denitrification and excess phosphorus uptake are relatively independent and intersectant biological processes. The overlap is that denitrifying phosphorus removing bacteriawhich possesses the two bacterial metabolisms, could utilize nitrate as an electron acceptor for phosphorus uptake. The two-sludge system can not only combined biological phosphorus removal and denitrification processes to form a process in practical wastwater treatment , but also solved the main difficulties of current single-sludge systems:①the sludge age competition between phosphorus removing bacteria and nitrifier;② the substrate competition between denitrification and dephosphatation.

以上的研究结果，尤其是时间序列的双泥生物反硝化除磷脱氮系统工艺（2A/O+N 2SBR法）的稳定运行，不仅证明了生物脱氮与生物除磷是两个既相对独立又相互交叉的生理过程，其交叉点是同时拥有硝酸盐还原性和超量吸磷这两种生化特性的细菌进行的反硝化吸磷脱氮生化反应，而且双泥系统工艺克服了常规单泥生物脱氮除磷工艺的两大问题（①聚磷菌和硝化菌的SRT相互干扰；②反硝化与生物除磷竞争VFA），同时保证了脱氮和除磷效果，排水指标达到污水综合排水标准（GB8978-1996）的一级标准，具有实际工程使用价值。

Methods (1)Speciments of periphral blood were collected from 25 patients with JOAG ,their 10 relatives and 25 normal subjects. Polymerase chain reactionwas usd to analyze the sequence of MYOC gene consisting of all 3 exons and adjacent non-coding regions.

(1)应用聚合酶链反应方法，对25例开角型青光眼患者及其10例一级亲属和20例正常对照者的MYOC基因的3个外显子、部分内含子及部分启动子(7对引物)的各个片段进行扩增。

The racemization reactions were found to follow apparent first order kinetics.

发现其消旋反应属於显见一级动力学过程。

Seven major methods and their reaction characteristics for the synthesis of primary vicinal diamines starting from epoxides, and alkenes etc.

详细综述了从环氧化合物、烯烃等为起始原料合成一系列一级邻二胺的七条主要路线，并比较了各条反应路线的特点。

The reaction order of was found to be unity and that in isobutyl alcohol to be positive fractional.

结果表明反应对鈰离子为一级，对异丁醇的表观反应级数为正分数。

The results showed that the acidities of 13X molecular sieve and mordenite by CVD were unchanged, and the relationship between SiO〓 deposition and contraction of pore diameter was determined.

在HMC-60催化剂上，140-156℃范围反应均为一级，表观活化能为1.75KJ/mol，频率因子A=5.314×10〓，反应速率与温度的关系为k=5.314×10

Kinetics characteristics of α- pinene isomerization catalyzed by activated carbon supported phosphotungstic acid was studied .

研究了活性炭固载磷钨酸催化α－蒎烯的异构化反应的动力学特征，研究表明，以环己烷作溶剂，α－蒎烯在活性炭固载磷钨酸上的异构化服从准一级动力学模型，其反应的表观活化能为100。

When the proportion of amino acid and Fe~(3+) is above 2, the photoreduction reaction of Fe~(3+) at the early stage exhibits a first-order reaction kinetic pattern, but remains nearly stable after 100 min.

在氨基酸与铁浓度配比大于2的情况下，在铁-氨基酸盐配合物的光还原反应初期铁浓度的增长符合一级动力学反应规律，100 min后浓度趋于稳定。

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。