the catalytic hydrogenation technology of m-dinitrobenzene in liquid phase is an attractive and elegant routine for the production of m-phenylenediamine, owing to the advantages such as high product yield, good product quality and much less pollution to environment.

a hplc method for the simultaneous separation and determination of p-phenylenediamine 、 m-phenylenediamine 、 hydroquinone and resorcinol in four kinds of oxidizing hair dyes was established.

本文的研究内容如下所示：建立了同时测定四种氧化型染发剂中对苯二胺、间苯二胺、对苯二酚、间苯二酚的高效液相色谱分离分析方法。

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research on synthesis of m-aminophenol by hydrolysis of m-phenylenediamine

间苯二胺水解合成间氨基苯酚工艺的研究

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preparation of high purity m-phenylenediamine

高纯度间苯二胺的制备

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liquid-phase hydrogenation of m-dinitrobenzene to m-phenylenediamine over silica-supported nickel catalyst

Ni/SiO2催化剂上间二硝基苯液相加氢制间苯二胺

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synthesis technology of m-phenylenediamine by catalytic hydrogenation over nickel-based catalyst in trickle-bed reactor

滴流床反应器中镍基催化剂催化加氢合成间苯二胺工艺的研究

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study on preparation of m-phenylenediamine by catalytic hydrogenation of m-dinitrobenzene

间二硝基苯催化加氢制备间苯二胺

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formaldehyde, reaction products with m-phenylenediamine, sodium sulfide and sulfur;

甲醛与间苯二胺、硫化钠和硫的反应产物；

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influence of the acetylating chain extender m-phenylenediamine on the properties of polyurea

扩链剂间苯二胺酰基化改性对聚脲性能的影响

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curing kinetics of bisphenol-s epoxy resin and m-phenylenediamine system

双酚-S环氧树脂与间苯二胺固化反应动力学

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college lecturer: you needn't type your essays but you must write legi- bly.

大学教师：你们不必把文章用打字机打出来，但必须字迹清楚。

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the firm also uses weber's legi label creation software to design its own bar-code labels.

该公司还利用韦伯的普通法标签制作软件来设计自己的条形码标签。

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and finally, luka doncic should be considered this prior class' best player, even though luka doncic and jaren jackson jr were also quite prolific.doncic can do a little bit of everything.

最后，东契奇应该被认为是一流的最佳球员，尽管东契奇和小贾伦实力都很强。东契奇什么事都能做一点点。

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gel phenomena of epoxy cured with metaphenylene diamine

间苯二胺固化环氧树脂凝胶现象研究

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this is my favorite word, by the way: erinaceous: pertaining to the hedgehog family; of the nature of a hedgehog.

看一下一个我喜欢的词，Erinaceous：属于刺猬的；刺猬的本性。

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stay at a job where you've become permanently labeled an underperformer

永久地停留在一个岗位或工作上，做一个不合格者。

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the dispassionate euphemism "underperformer" is one that i have never heard anyone use to describe themselves.

我从来不曾听过有人会用不带情感色彩的委婉语“表现欠佳者”来形容自己。

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the it sector, down 1. 6 percent, was the biggest underperformer, followed by the materials and telecoms.

信息技术板块下跌1.6%，表现最差，随后是原材料和电信板块。

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sam*, an associate who had been labeled an underperformer, was assigned to work on the project.

萨姆*，一个几乎就是挂着业绩不及格标签的人物，被分配参与该项目。

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you can do things that common people take great effort to do easily, like adopting unadoptable kids at ease

你可以轻松的做普通人很难做的事，比如领养孩子

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but his "elegance" is unadoptable because it refers to the use of classical chinese before the han dynasty.

但是他的‘雅’不可取，因为它是指汉朝以前的古典汉字的使用。

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