查询词典 methyl salicylate

The benezoxazolocoumarin dyes substituted with methyl or chlorine on 5'-position showed bathochromic shift of the maximum absorption and fluorescence emission.

香豆素类荧光染料在5'-位有取代基可使最大可见吸收波长和荧光发射波长产生红移；当共轭双键长度增加，可使染料颜色变深(Ⅴ：544，Ⅵ：552)。

Part III, 12-benzyl dehydroabietyl thioisocyanate was synthesized from methyl 12-benzyl dehydroabietic acid, by hydrolysis, chloride, Curtius reaction to give isocyanate which was hydr- olysied to amine under acidic condition, and with the method of CS2 at last, the maximal excitat- ion wavelength was bathochromic shifted 14nm compared to DDHA-NCS.

第三部分，从12-苯甲酰基脱氢松香酸甲酯出发，经过水解，酰氯化、Curtius reaction得到异氰酸酯，在酸性条件下水解成胺，最后由二硫化碳法得到一种新的荧光衍生试剂12-苯甲酰基脱氢松香酸异硫氰酸甲酯，与DDHA-NCS相比，最大激发波长红移了14nm。

S-methyl benzo[l,2,3]thiadiazole-7-carbothioate as one of a new plant inducer has been widely studied rencently, and has been already used as pesticide in agriculture.

苯并[1，2，3]噻二唑-7-羧酸硫甲酯是一类新型的植物诱导剂，此类物质出现后受到了广泛的重视，在植物病害防治中取得了良好的效果。

The main purpose of this study was to evaluate the effect of BTH benzo (l, 2, 3 thiadiazole-7-carbothioic acid S-methyl ester at 25 ppm on control of powdery mildew of the common jasmin orange.

药剂处理过的围篱试区，每个月调查一次，连续4个月的观察，发现BTH具有显著减轻与迟缓白粉病发生的效果。

An acrylic resin was synthesized by the radical copolymerization with methyl methacrylate, butyl acrylate and methacrylic acid monomers in solution using benzoperoxide as initiator. Appropriate parameters of monomer ratio, monomer concentration, solvent, and reaction temperature were found by experiment.

以过氧化二苯甲酰为引发剂，采用溶液聚合合成了甲基丙烯酸甲酯-丙烯酸丁酯-甲基丙烯酸树脂，通过实验确定了自由基共聚合适宜的单体配比、单体浓度、引发剂浓度、溶剂以及反应的升温速度。

It was found that both the conversion and the initiating efficiency of methyl methacrylate polymerization system were decreased in the presence of small amounts of addition inhibitions 2,4,6-trinitrophenol or Benzoquinone, the system exhibited some retardation characteristics; at the same time, the molecular weights of obtained polymers was small and the molecular weight distributions was narrow, it was suggested that this polymerization system exhibited some ""living""/controlled radical polymerization characteristics.

发现在甲基丙烯酸甲酯的普通自由基聚合体系中加入少量的加成型阻聚剂2，4，6-三硝基苯酚或1，4-苯醌时，体系转化率降低，引发效率降低，呈现出一定的缓聚性质：同时得到的聚合物分子量变小，分子量分布变窄，具有一定的&活性&/可控的特征。

Based on the synthesis method and the function of decreasing blood glucose levels of rosiglitazone, and the report on benzoquinones which resulted in a significant decrease in blood glucose levels, a novel non-thiazolidinedione class of PPARy agonist 2, 5-Dihydroxy-3-{4-[2-(methyl- pyridin-2- yl-amino)- ethoxy] -phenyl}-6-phenyl-[l, 4] benzoquinone (4) was designed and synthesized.

在合成罗格列酮的基础上，根据某些醌类结构化合物的类似胰岛素作用，设计并合成了一种非噻唑烷二酮类PPARγ激动剂2，5-二羟基3-{4-[2-(甲基-2-吡啶氨基)-乙氧基]-苯基}-6-苯基-1，4苯醌(4)。

Quick vulcanization adjuvant, and said adjuvant includes dithioalchol benzothiazole, dibenzothiazole disulfide, tetra methylthiuram disulfide, zinc methyl phenyl dithio carbamate and ethyleen thiourea.

助剂是：二硫醇基苯并噻唑、二硫化二苯并噻唑、二硫化四甲基秋兰姆、甲基苯基二硫代氨基甲酸锌、乙烯硫脲。

By four stage extraction,the desulfurization ratio of the simulated system with thiophene,2-methyl thiophene,benzothiophene,dibenzothiophene was as high as 60%～90%.

在室温下以溶剂比为1∶1对模拟体系进行4级错流萃取，脱硫率可以达到60%～90％。关键词离子液体；BeS；萃取脱硫

In this paper,water-soluble ionic liquid BeS was used as extractant for sulfur compounds thiophene,2-methyl thiophene,benzothiophene,dibenzothiophene in simulated fuel and the feasible operation conditions were confirmed by extraction experiments.

选择水溶性的离子液体BeS作萃取剂，对模拟油品中的4种含硫有机物噻吩、2-甲基噻吩、苯并噻吩、二苯并噻吩进行了萃取，确定了适宜的萃取操作条件。

You have to walk your own alk in this life.

次生中你必须走自己的路。

To start with, the thesis analyses ***ism in terms of the generic masculine words, word order and semantic derogation of women in greater detail.

论文首先从阳性词泛指，词序，词义的贬降等方面对英语中的性别歧视现象进行了详细的分析。