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From the reaction mechanism, which involved formation of benzodiazepinium ethoxycarbonylmethylate, the reaction mechanism, which involved formation of benzodiazepinium ethoxycarbonyl- methylate followed by cycloaddition reaction, was tentatively proposed.

通过研究反应过程中分离出的副产物反丁烯酸二乙酯III和4,5-二氢吡唑-3,4,5-三羧酸乙酯IV,初步提出了反应经过乙氧羰基甲基化苯并二氮杂卓翁中间体V再发生环加成反应的机制。

Goal compound synthesis namely: Take the vanillic acid as outset raw material, obtains 4- hydroxyl - 3- anisole methyl formate with the methyl alcohol reflux conditions, then after the etherification, the nitration, the return to original state, the ring closure response obtains 6- methoxy - 7- animal pen oxygen radical kui zuo lin - 4- alkone, then passes through the chlorination, the substitution aniline, to escape responses again and so on animal pen oxygen radical, etherification to obtain the goal compound; The goal compound and the diethylamine had the amine substitution reaction to obtain TM1, namely 4- benzene amino - 6- methoxy - 7- [2- hydroxyl - 3-(N, N- two ethyl aminos) third oxygen radical] kui zuo lin; Through zuo has the etherification with the Austria niter to respond obtains TM2, namely 4- benzene amino - 6- methoxy - 7- [2- hydroxyl - 3-(2- methyl - 5- nitryl imidazole) third oxygen radical] kui zuo lin.

目标化合物的合成即:以香草酸为起始原料,与甲醇回流条件下得到4-羟基-3-甲氧基苯甲酸甲酯,然后经过醚化、硝化、还原、环合反应得到6-甲氧基-7-苄氧基喹唑啉-4-酮,然后再经氯化、取代苯胺、脱苄氧基、醚化等反应得到目标化合物;目标化合物与二乙胺发生胺取代反应得到了TM1,即4-苯氨基-6-甲氧基-7-[2-羟基-3-丙氧基]喹唑啉;通过与奥硝唑发生醚化反应得到TM2,即4-苯氨基-6-甲氧基-7-[2-羟基-3-(2-甲基-5-硝基咪唑)丙氧基]喹唑啉。

After a terrible 39 day voyage from the Philippines, the men were in such bad condition that the Japanese decided to off-load them in Taiwan for a couple of months to get them fit before moving them on to Japan.

经过三十九天恶劣的航程,这些美军战俘的健康状况非常差,因此日军决定将他们暂时羁押在台湾,直到恢复健康之后再转往日本进行劳役工作。

In order to find a method for determing transportation batch and tank capacity of short-small product pipeline,the Anqing-Hefei product pipeline is taken as an example,which has such characteristics as a short route,a small diameter,no offtake stations,no new tank and little contaminated product loss.

为了研究短小成品油管道输送批次和罐容的确定方法,以安庆-合肥成品油管道为例,根据该工程线路短、管径小、不考虑分输、不需要新建储罐、混油量少等特点,经过综合比较确定管道输送的最大批次数,再综合分析首末站的实际情况,以充分利用首末站现有储罐、方便运行管理、减少混油损失为原则,来确定合适的批次和首末站的罐容。

Reducing the quality fluctuation of PVC resin produced by calcium carbide method among each production batch ;2. In order to find a method for determing transportation batch and tank capacity of short-small product pipeline,the Anqing-Hefei product pipeline is taken as an example,which has such characteristics as a short route,a small diameter,no offtake stations,no new tank and little contaminated product loss.

为了研究短小成品油管道输送批次和罐容的确定方法,以安庆-合肥成品油管道为例,根据该工程线路短、管径小、不考虑分输、不需要新建储罐、混油量少等特点,经过综合比较确定管道输送的最大批次数,再综合分析首末站的实际情况,以充分利用首末站现有储罐、方便运行管理、减少混油损失为原则,来确定合适的批次和首末站的罐容。

Feed grade paprika powder is obtained from saponified paprika oleoresin mixing with carrier. It is a kind of natural feed additives.

饲料级辣椒红粉末是由红辣椒中提取的辣椒红树脂经过皂化处理,再添加载体混合而成的一种纯天然饲料添加剂。

Feed grade marigold powder is obtained from saponified marigold oleoresin mixed with carrier. It is used as a kind of natural feed additives .

饲料级叶黄素粉末是由万寿菊花中提取的叶黄素树脂经过皂化处理,再添加载体混合而成的一种纯天然饲料添加剂。

Dr. Robert Waterston (International Human Genome Sequencing Consortium): After three billion years of evolution, and several years of work by this 16coalition, we have before us the instruction set that carries each of us from a one-celled egg, to adulthood, to the grave.

罗伯特·沃特斯顿博士(国际人类基因组测序组织)∶经过30亿年的进化,以及这些科学家们数年的研究工作,我们终于揭开了基因组织的奥秘,而它将伴随每个人的一生,从一个单细胞卵到成人时代再到死亡的过程。

Hopson Development Holdings Limited Vice-Chairman of Bin also said that after years of development, real estate companies the ability to resist risk has been greatly increased, together with the Government to adopt a gradual cooling of the "soft landing" approach, from the 121 documents last year to now, the policies are consistent and orderly introduction of first-class room rates should have little impact.

霍普森发展控股有限公司副主席兼斌还表示,经过多年的发展,房地产公司的抗风险能力已经大大提高,再加上政府采取逐步降温的"软着陆"的方法从去年的121个文件,目前的政策是一致的和有秩序地引进一流的房价的影响应该不大。

In the database establishment phase, each music file is first partitioned into a set of musical data objects encoded via mapping function, including bi-gram, tri-gram and four-gram approaches, to establish a music database.

在音乐资料库的建置阶段,资料库中的每首音乐会先经过断句的处理,形成一段一段的乐句,再透过映射函数,分别针对二个音符、三个音符和四个音符进行编码,作为检索的依据。

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推荐网络例句

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。

This is not paper type of business,it's people business,with such huge money involved.

这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。