反应作用

The role of the oxidant used was considered to be a quencher of the semiquinone radical anion of HA to its parent quinone to increase the relative concentration of HA so that the generation of SO~3^- via the electron transfer interaction between Hypocrellins and SO~3^2^- was accelerated.

氧化剂在这一反应中的作用为：将产生的竹红菌素半醌负离子自由基氧化至其母体醌，增加反应物的相对浓度，同时使竹红菌素与SO~3^2^-之间的电子转移循环进行，加速SO~3^-的产生。

Reaction at the phosphorus furnace reducing agent on the one hand the reaction, the other played the role of conductivity.

还原剂在磷炉反应中一方面参与反应，另一方面是起到导电的作用。

Glycine wasn't a repressible substrate for the reaction catalyzed by SHMT. The effect of concentration of glycine on reaction rate was consistent with M-M Equation. Under the conditions used in this research, V〓 was 0.212mmol/L/min and K〓 was 0.0198mol/L.

甘氨酸对丝氨酸羟甲基转移酶催化的合成反应无底物抑制作用，且甘氨酸浓度对酶反应速度的影响服从米氏方程的形式，实验条件下V〓为0.212mmol／L／min，K〓为0.0198mol／L。

The isothermal DSC analysis showed that the Ruleless Coring Mechanism, Diffusion Mechanism and Phase Interface Mechanism would control the reaction of isocyanate and cellulose with different MC. The key effects of complicated mechanism rest with water transference and fast reaction of isocyanate and water.

等温DSC 研究揭示含水纤维素与异氰酸酯反应时，存在无规成核机理、扩散机理和相界面机理等多种情形，水分迁移作用和异氰酸酯与水反应速率较快是致使异氰酸酯与含水纤维素的反应机理复杂的关键。

As an experiment, basketball players in the excellent university are a sked to take additional alkali in the training period to buffer acidity m etabolism, to lower the PH value and as it turns out, exhaustion is weakened and the basketball players generally feel fine. Therefore the author concludes that the syst ematical supplement with alkali in university sports teams has certain effect on the weakening of exhaustion.

摘 要：通过高校篮球高水平运动队在训练期口服补碱以缓冲酸性代谢产物的实验，观察到体液PH值降低等反应，证明了运动员在训练时系统补碱对中和血液中产生的乳酸等酸性产物，减缓运动疲劳是有一定作用的，运动员也普遍反应自我感觉良好，是一种安全、简易、快捷的手段。

A new kind of magnesium alloys has been synthesized by high energy ball-milling of Mg and Fe mixed powders.Due to the high corrosion speed and reacting efficiency,the alloys are generally called super-corroding alloys.A SCA bulk is fabricated through cold-pressing and sintering the mechanically alloyed Mg-Fe powders.The chemical reaction of SCA with seawater rapidly releases heat and hydrogen gas,which may play very important roles in many ocean applications.For example,the reaction heat can be used to keep diver clothes warm;SCA corrosive links with the function of self-destruction can be utilized to control the sinking and floating of sonobuoy, and to salvage the training torpedo or other instruments.In addition,the reaction heat of SCA can be applied to heat food,machinery and ice or snow,which is thus very helpful for mountaineers.

超腐蚀合金采用Mg和Fe混合粉末，经高能球磨机械合金化、冷压、烧结，形成Mg-Fe合金块体，具有很高的海水腐蚀速率和反应效率，该合金化学反应放出的热量和氢气可在海洋工程中发挥重要作用，例如：可为深海作业潜水衣的保暖提供热量；由其制造的腐蚀链通过自毁机制，可用来控制声纳浮标的沉浮时间，打捞和回收水中的贵重仪器、装置以及训练用的靶雷；在偏远地区和寒冷地带，利用该合金的反应放热特性，不仅可加热机械、仪表或食品，而且能为登山运动员提供取暖所需的热量。

The first stage is screen experiment. A 24-1 Fractional Factorial Design and resolution IV experiment is used to find out which main effect and interaction effect have obvious influence on the precision positioning of feeding table by these four factors. The Minitab program including Half Normal Plot, Pareto Chart, and ANOVA is applied to diagnose obvious effects. The second stage is optimization experiment. The fitness of regression model is obtained by using CCD of RSM with statistical hypothesis testing, regression analysis, lack-of-fit testing, and residual analysis. The optimum values can be found out by using response surface plot and contour plot.

在第一阶段为筛选实验采用24-1部分因子实验，解析度为IV，求出这4个因子主效应及交互作用哪些会对进给平台定位精度有显著的影响，在分析方面使用统计软体Minitab做初步分析，应用了半常态机率图、柏拉图与变异数分析来判断出显著因子与交互效应显著，第二阶段优化实验采用反应曲面法的中央合成设计，搭配统计检定、回归分析、缺适性检定(Lack-of-Fit)、残差分析来取决回归模式之合适性，最后根据反应曲面图及等高线图求出最佳值做验证实验。

The N-alkylation of N-monosubstituted sulfonamide s with alkyl halides promoted by KF using ionic liquids as reaction media was reported in this paper.

报道了KF作用下离子液体介质中N-单取代磺酰胺和卤代烃的N-烷基化反应，考察了4种不同结构的离子液体BF4、BF4和PF6对反应的影响。

It was found that the allylide of sulfonium salt could react with aryl aldehydes to afford corresponding trans-epoxides in good yield with good trans/cis selectivity and excellent enantioselectivity.

根据反应条件对反应的影响并结合通过单晶测定的反式环氧化产物的绝对构型，我们提出了氢键起主导作用的手性诱导机制。

Second, by analyzing the influence of theenzymedosage, reactionary time, temperature, PH and so on. We can make deeplyunderstand of the reactionary dynamics of enzyme, then make sure the best reaction condition,and set down reasonable techincs to distill high-purity soybean fibre from bean dregs, thenanalyze its structure and character to make theca.

通过分析酶加量、酶作用时间、温度、PH值等因素的影响，深入了解酶的反应动力学，从而确定其最佳反应条件，制定合理的工艺，从豆渣中提取高纯度的膳食纤维，并分析其结构和性质，使之成膜。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。