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This proved that nitrourea was a more suitable reactant than urea to synthesize Keto-RDX.

由此表明了生成RDX酮的反应过程中,硝基脲上比脲更合适的反应形式。

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The soy sauce containing urea will become red when heated together with diacetyldioxime and phosphoric acid.

掺有尿素的酱油与丁二酮肟、磷混合后,加热煮沸会呈现红色。

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Since various, cause has not given a test to maneb zinc supersession thing second braces sulfurs urea (ETU).

由于各种原因未对代森锰锌的代谢物乙撑硫脲(ETU)进行检测。

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Cross-linking agent glycoluril with a yield of 61.8% had been synthesized by employing urea and glyexal as reactants,and hydrochloric acid as catalysts.

以尿素和乙二醛,催化的条件合成了甘脲,61.8%。

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Bromacil was synthesized using 2-bromobutane and urea as the starting materials in three steps including condensation,cyclization and bromination with total yield of 61%.

以2-溴丁烷和尿素作起始原,经缩合、环化、溴代三步反应得到除草定,总收61%。

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High-grade filling and retanning agent CDF was prepared by condensation polymerization reaction of urea,cyanuramide and dicyandimide.The property and application of the product were discussed.

本文主要论述了用脲、双氰胺、三聚氰胺等原经缩聚反应制备填充复鞣剂CDF的方法及其性能与应用。

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This paper presents the studies on the reaction form of urea or nitrourea which condenses with nitrolysis fragments of urotropine to form Keto-RDX in nitrating agents.

通过改变加方式来研究脲或硝基脲硝化剂中与乌洛托品硝解碎片进行缩合反应的形式。

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Methods Compounded one kind of trisaccharide iron urea indol culture medium and the trisaccharide iron agar has carried on the contrast experiment with the national standard method in voluntarily.

方法自行配制了一种三糖铁尿素靛基质培养基,并与国家标准方法中三糖铁琼脂进行了对比试验。

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A kind of monosubstituted squaric amide ——mono carbamoyl amide of squaric acid 3(MCASAQ) was prepared by the condensation of squaric acid (SQ) with urea or its derivatives in water.

以水介质,方与脲及其衍生物顺利发生脱水缩合,合成了一类方单酰胺化合物——氨甲酰类氮氧方3。

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The biruet can develop the color with the cupric sulfate in the alkaline solution, we call that the biruet reaction.Malonyl urea has acidity, so we call it barbituric acid.

巴比妥本身无镇静催眠作用,当它的五位亚甲基上的两个氢被烃基取代后才呈现镇静催眠的生理活性,是一类对中枢神经系统起抑制作用的化合物。

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Mainly, urea and uric acid producing even more ammonia.

同时尿素和尿酸会产生更多的氨。

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NPR音讯 2015年10月合集

Those cars don't have the urea tank right now.

这些车辆现在没有安装尿素罐。

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Osmosis-微生物

So, with Klebsiella, urease makes urea dissociate into carbon dioxide and ammonia.

肺炎克雷伯杆菌产生的脲酶使得尿素分解成二氧化碳和氨。

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PBS趣味科普

Using a special enzyme, they stuff urea — another nitrogen containing compound — into their tissues.

它们使用一种特殊的酶,它们中填装尿素 ——另一种含氮化合物。

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中级英语短文

The fatty acids, urea, uric acid and lactate in the sebaceous film protect and hydrate the skin.

皮脂膜中的脂酸、尿素、尿酸和乳酸对皮肤有着保护和滋润作用。

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Osmosis-微生物

So, with Staph saprophyticus, urease makes urea dissociate into carbon dioxide and ammonia.

腐生菌中的脲酶可使尿素分解为二氧化碳和氨气。

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SciShow 合集

So, if you’re eating a high-salt diet, your body responds by making more urea.

所以,如果你吃的是高盐饮食,你的身体会产生更多的尿素。

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魔鬼经济学

Some of it we use to make urea.

其中一些我们用来制造尿素。

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学生科学报

They made a cement from urea and faux lunar soil.

他们用尿素和人造月土壤制成了水泥。

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初来乍到(第二季)

And be sure to use fertilizer without urea.

一定不要用含尿素的肥料。

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PBS人体科学

Using a special enzyme, they stuff urea–another nitrogen containing compound–into their tissues.

使用一种特殊的酶,它们将尿素——另一种含氮化合物——填充到它们的中。

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学生科学报

They bought their urea from a chemical supply company.

他们从一家化学品供应公司购买尿素。

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SciSHow 快问快答小科普

Pee and sweat for example both contain urea, a molecule with two ammonia like parts.

例如, 尿液和汗液都含有尿素,这是一种含有两个类似氨的部分的分子。

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学生科学报

Her team mixed that powder with powdered urea.

她的团队将这种粉末与尿素粉混合。

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学生科学报

But overall, she says, making cement with urea on the moon could be practical.

但总的来说, 她说,在月上用尿素制造水泥是可行的。

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2017级专外有声

They do this by separating urea, mineral salts, toxins, and other waste products from the blood.

它们通过从血液中分离尿素、矿物盐、毒素和其他废物来达到这一目的。

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Scishow 精选系列

But when he accidentally made urea instead, scientists began to think maybe living things weren't so chemically different from non-living things.

但是当他不小心制造出尿素时,科学家们开始认为也许生物和非生物在化学上并没有太大不同。

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SciSHow 快问快答小科普

When urea comes in contact with chlorine, it swaps out its hydrogens for chlorine, and voila, chloramine is born.

当尿素与氯接触时, 它会将氢换成氯,瞧,氯胺就诞生了。

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Life Noggin

Sweat is made of water, sodium, urea, ammonia and a few other things, but sweat itself doesn't actually smell.

汗水是由水、 钠、 尿素、 氨和其他一些物质成的,但汗水本身并没有气味。

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Osmosis-微生物

In the urinary tract, Klebsiella can also use urease to convert the urea that's normally present in urine to ammonia and carbon dioxide.

在尿道中,克雷伯菌也可以利用脲酶将尿液中的尿素转化为氨和二氧化碳。

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