乙酸的

Then peracetic acid was employed as oxidant to prepare POSS-epoxide and the epoxy value can be controlled by reaction temperature.

而后，又以过氧乙酸为氧化剂，制备了带有环氧基团的多面体低聚硅倍半氧烷分子，并可通过反应温度控制其环氧值。

An ester or a salt of perchloric acid .Indocin is the trade name of this nonsteroidal anti-inflammatory drug.

氯苯基甲氧基甲基吲哚乙酸是一种非固醇抗炎药物的商标名称。

In order to enhance the expression level, the effects of fermentation parameters such as temperature, pH, phenylacetic acid, kanamycin concentration, carbon source and nitrogen source on cell growth and PGA yield were investigated.

以LB作为初始培养基，考察了温度、pH、苯乙酸和卡那霉素浓度以及碳源和氮源对于工程菌PGA产量的影响。

Deoxybenzoin(3) was prepareded by using the resorcinol and substituted phenylacetic as starting meterials in microwave-mediated.Then the compound(3) was reacted with acetic anhydride to produce(4).The compound(4) was hydrolyzed to convert compound(5) in the acid-mediated. The compound(5) was reacted with the 1,2-dibromo-ethane and 1,3-dibromo-propane in refluxed condition with acetone as solvent to give(6) or(7),respectively.Lastly,the title compounds were synthesized by refluxing(6) or(7) with 2-methyl-benzimidazole and potassium carbonate in acetone solution.

以取代苯乙酸和间苯二酚为起始原料，用微波辐射法合成脱氧安息香(3)，(3)与乙酸酐缩合生成2-甲基-7-乙酰氧基异黄酮(4)，(4)在酸性条件下水解生成相应的异黄酮(5)，化合物(5)分别与1，2-二溴乙烷和1，3-二溴丙烷反应生成(6)和(7)，化合物(6)和(7)再分别与2-甲基苯并咪唑偶合生成目标化合物。

This thesis is constituted by four parts: In the first part a summarization is given on the main total synthetic methods of isoflavones, for example, deoxybenzoin method which generally involves two steps wherein a phenol is reacted in the presence of a Lewis acid with phenylacetic acid to generate an intermediate deoxybenzoin which is then cyclized with a one carbon electrophile.

本论文主要工作包括四部分：第一章综述了近年来全合成异黄酮的主要方法：脱氧安息香法，是以多羟基苯酚与苯乙酸或苯乙腈在Lewis酸存在下，反应生成中间体脱氧安息香，然后再与亲电碳试剂进行关环反应生成异黄酮。

Interestingly we found that high concentration of L-phenylalanine (Phe, 10mM) and DL-β-phenyllactic acid (PL, 10mM) decreased 〓, while phenylacetic acid (PAA, 10mM) could decreased 〓, then increased, finally decreased 〓. With the normal extracellular balance solution replaced by calcium-free and natrium-free balance solution, PL did not change its effect on intracellular free calcium.

我们用钙成像技术检测氨基酸及其衍生物对未成熟神经元胞浆游离钙浓度的影响，结果发现高浓度苯丙氨酸降低胞浆游离钙，苯乙酸使胞浆内钙浓度降低后升高最后又降低，苯乳酸使胞浆内钙降低更明显。

In the distillation column with a single reactor, the outer loop reactor is designed and applied. The reaction dynamics datas of photochlorination of acetic acid in the reactor were tested. According to parallel-consecutive reaction dynamics model, the parameters were fitted and the model result tallys experiment result well.

在背包式反应精馏装置中，采用了外环流反应器，实验测定了该反应器中乙酸光氯化的反应动力学数据，采用平行-连串反应动力学模型进行了参数拟合，所得模型计算值和和实验值吻合较好。

The effects of the extracts from Brucea javanica using chloroform and ether acetate on the activity of protease and the protein contents of Pieris rapae were studied.

鸦胆子氯仿和乙酸乙酯提取物对菜青虫幼虫蛋白酶的活性和蛋白质含量均有明显影响。

Pot experiment was conducted to determine the content of endogenous hormone, including Abscisic acid, Indole-3-acetic acid, Gibberellins and Zeatin, in the roots of pea Pisum sativum Linn.

采用盆栽试验方法，研究了干旱胁迫及复水对豌豆根系脱落酸、吲哚乙酸、赤霉素和玉米素等4种内源激素含量的影响。

Pot experiment was conducted to determine the content of endogenous hormone, including Abscisic acid, In-dole-3-acetic acid, Gibberellins and Zeatin, in the roots of pea (Pisum Sativum Linn.) under drought stress and water recovery.

采用盆栽试验方法，研究了干旱胁迫及复水对豌豆根系脱落酸、吲哚乙酸、赤霉素和玉米素等4种内源激素含量的影响。

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。