酸性反应

For ethylbenzene and cumene oxidations, it was observed that small amounts of mild-strong acid sites in catalyst could inhibit the reaction.

对烷基芳烃的研究结果显示，分子筛催化剂中少量的中强酸性即可对氧化反应产生强烈阻止作用。

Compared with the corresponding mesoporous molecular sieve, SBU-MCM-41 showed higher above 68% catalytic activity for cumene cracking and exhibited better hydrothermal stability.

与相应的中孔分子筛相比，SBU-MCM-41的酸性增强，异丙苯裂解反应活性提高了68％以上，并且水热稳定性也有一定程度的改善。

Dawe B%Oswald T Reduced Adsorption and Separation of Blended Surfactants on Sand and Clay Journal of Canadian Petroleum Technology , 1991,02

朴玲钰%付晓%杨雅立%陶国宏%寇元离子液体的酸性测定及其催化的二苯醚/十二烯烷基化反应 10.3321/j.issn：0253-9837.2004.01.011 催化学报， 2004，01

Use nitrite and the Sulfanilic acid diazotization in acidic conditions,with dinitroaniline coupling formation color reaction,established the method of using the color reaction Determination Chinese cabbage s Nitrite content.

在酸性条件下亚硝酸盐与对氨基苯磺酸重氮化后，再与盐酸萘乙二胺偶合形成颜色反应，建立了用比色法测定大白菜中亚硝酸盐的方法。

Since the dismutation of superoxide radicals by SOD is a reaction that is rate-limited by diffusion and enhanced by electrostatic guidance, all these structural features may be related to GP-MnSOD's high catalytic activity: first, Lys38 may increase the effective enzyme-substrate association rate by enhancing the electrostatic gradient at its substrate channel; second, an excess of acidic over basic residues makes the negative surface potential of GP-MnSOD more larger than those of other known MnSODs. This may enhance the reaction rate by reducing futile collisions of superoxide radicals with GP-MnSOD's surface.

因此，GP-MnSOD的上述结构特征可能与GP-MnSOD的较高酶活有关：首先，Lys38增加了底物通道口的正静电势梯度，从而可能促进了GP-MnSOD的活性中心与底物的有效结合速率；其次，GP-MnSOD表面覆盖的过量酸性残基使得它比其它MnSOD在底物通道以外的蛋白表面更多地被负静电势所覆盖，这可能有效地减少了超氧阴离子与GP-MnSOD表面的无效碰撞，从而提高了反应速率。

Eosinophile, mast cell , basophils, lymphocyte and many kinds of cytokine are involved in this inflammation.

是以气道高反应性和慢性气道炎症为特征的变态反应性疾病，是由嗜酸性粒细胞、肥大细胞、T淋巴细胞等多种炎症细胞和细胞因子参与的气道慢性炎症。

Although LTE4 shows negligible activity at the type 1 and 2 receptors for cys-LTs (CysLT1R and CysLT2R), it is a powerful inducer of mucosal eosinophilia and airway hyperresponsiveness in humans with asthma.

尽管LTE4对CysLT1R和 CysLT2R的作用很小，但它在哮喘患者中却易导致粘膜内嗜酸性粒细胞增多和气道高反应性。

Propene hydration etherification reaction catalyzed by β zeolite was studied by using in situ FT IR technique, and the effects of surface acidity on the reaction were discussed.

采用原位红外光谱技术，对β沸石催化剂上的丙烯水合醚化反应过程进行了研究，并结合催化剂的表面酸性进行了讨论。

The results show that the rate of decolorization of activating calcareous adsorbentis is 99.33%, COD removal rate equals to 85% when the pH 7 for acid fuchsin dye, 10 mg/L initial concentration of dye 10 g/L adsorbent 103.5 mg/L initial COD adsorb 5 min.

结果表明，处理含偶氮结构的酸性品红染料废水，当初始pH值为7、初始浓度10 mg/L、吸附剂用量10 g/L、原水COD 103.5 mg/L时、吸附反应5 min后色度去除率为99.33%，COD除去率为85%。

A method for determining trace Cu is described based on the catalytic effect of trace copper on the decolorizing oxidation reaction of acid fuchsin by potassium periodate in the presence of a,a'-dipyridyl.

本文研究了在α，α′-联吡啶存在下，铜离子催化高碘酸钾氧化酸性品红褪色的新指示反应及动力学条件，建立了催化光度法测定痕量铜的方法。

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。