酸性反应

The reaction rate is monitored spectrophotometrically by measuring the increase in the absorbance of acid fuchsine at 546 nm after a fixed heating time (10 min).

在固定加热时间段(10 min)后，于546 nm处测定酸性品红的吸光度增加值监控反应速率。

The mechanism of color changes between Fuchsine Acid and Bovine Serum Albumin was studied by spectra probe. And the influence of different experimental conditions on the absorption spectra of FA-BSA mixtures was investigated.

摘 要：利用光谱探针技术研究了酸性品红(Fuchsine Acid，FA)与牛血清白蛋白(Bovine Serum Albumin，BSA)的变色反应机理，考察了不同实验条件对FA-BSA复合物吸收光谱的影响。

The reduction in eosinophil infiltration was accompanied by normalization of AHR and preention of goblet cell hyperplasia, indicating reduced mucus production.

嗜酸性粒细胞的减少与气道高反应性和杯状细胞预防减少相关。

Nicotianamine synthase gene has an important function in the Fe-deficiency response of graminaceous monocots, and it catalyzes substance to nicotianamine which plays an important carrier in the internal transport of Fe(superscript 2+) and other divalent metal ions. Nicotianamine can bind with Fe(superscript 2+) to form Fe(superscript 2+)-NA complex and protect plants from toxicity in acidic soil.

烟酰胺合成酶基因在单子叶禾本科的缺铁胁迫应答反应中起着关键作用，它的催化产物烟酰胺是铁及其他二价金属离子在体内吸收和转运的重要载体，且能与Fe(上标 2+)结合形成Fe(上标 2+)-NA复合物，从而使植物在酸性土壤中免受铁毒害。

In acidic condition, the extractive form waste water in hardboard production reacts with extra amount of formaldehyde at 1-5∶1 (formaldehyde : solid extractive, based on weight) to prepare extractive-formaldehydecomplex, then urea or phenol is added into the solution of this complex and reacts with unreacted formaldehyde to form a new adhesive system.

利用纤维板生产中废水提取物与过量甲醛(甲醛溶液与粉状废水提取物的重量比为1～5：1)在酸性条件下可制成纤维板废水提取物-甲醛复合体，此种复合体反应液中的过量甲醛再用尿素或苯酚吸收，从而制成尿素改性纤维板废液胶。

Formaldehyde is absorbed by an acidic saturated solution of 2,4-dinitrophenyl hydrazine and converted to its hydrazone; the hydrazone is then extracted with CS2 and quantitated by GC.

利用尾气中的甲醛与2，4-二硝基苯肼酸性饱和溶液反应生成甲醛腙的特性，通过检测甲醛腙的浓度来检测尾气中的甲醛含量。

Based on the absorption property of glyoxime which can be formed by addition reaction of aldehyde group and hydroxylamine in the UV-spectral region,spectrophotometric determination of glyoxal in glyoxal solution was proposed.

利用醛基与羟胺在酸性条件下的成肟反应产物乙二醛二肟对紫外光的吸收特性，用紫外分光光度法测定乙二醛的含量。

The whole work is mainly composed of following three parts:Part I: we first reported the Michael reaction of indole.

通过吲哚与α，β-不饱和酮的Michael加成反应，在酸性离子液体HSO4催化下高产率地得到了目标化合物。

Owing to phosphorous acid is produced from phosphorus trichloride in industry by hydrolysts, inspissation and crystallization, if we use phosphorus trichloride directly on synthesize N- iminodiacetic acid, not only can simplify operation, but also can red.

原工艺采用的是在酸性条件下高温时将甲醛滴加到亚磷酸与亚氨基二乙酸一钠盐混合溶液中进行反应，考虑到工业上亚磷酸的合成一般采用三氯化磷水解、提浓、结晶制得，直接将三氯化磷用于双甘膦的合成，不仅可以简化操作过程，而且对于降低生产成本和能耗有明显意义。

Originally techniques dropped formaldehyde into the mixture of phosphorous acid and monosodium of imino diacetic acid in high temperature. Owing to phosphorous acid is produced from phosphorus trichloride in industry by hydrolysis, inspissation and crystallization, if we use phosphoros trichloride directly on synthesize N- iminodiacetic acid, not only can simplify operation, but also can reduce the cost and save energy.

原工艺采用的是在酸性条件下高温时将甲醛滴加到亚磷酸与亚氨基二乙酸一钠盐混合溶液中进行反应，考虑到工业上亚磷酸的合成一般采用三氯化磷水解、提浓、结晶制得，直接将三氯化磷用于双甘膦的合成，不仅可以简化操作过程，而且对于降低生产成本和能耗有明显意义。

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。