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Objective To study the effect of zinc-oxide phosphorate base on preventing hydrogen peroxide leakage in intracoronal bleaching.

摘要目的研究髓室内,磷酸锌水门汀基对抗过氧氢渗漏的作用。

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This article summarized the research development of the reaction characteristic between lignin quinonoid chromophoric group and hydrogen peroxide.

概述了木素醌型发色基团与过氧氢反应特性的研究进展。

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Sometimes engineers will use chemicals to clean up of the master on the photoresist or chemical substance, such as hydrogen peroxide, acetonic.

工程师会拔取一些学品去纯不兴母盘上的平刻胶或学精神,如双氧水,丙酮。

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The catalysts,which were used for oxidating hydrogenized anthraquinone working fluid in the production course of hydrogen peroxide by anthraquinone method were introduced.

介绍了蒽醌法生产过氧氢在蒽醌氢工作液氧步骤中所用的催

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Research and development for fhe production of pyrocatechol and hydroquinone by reaction of phenol with hydrogen peroxide and percarboxylic acid as hydroxylating reagent are introduced.

重介绍用过氧氢和过氧羧酸作羟基,使苯酚羟基生成邻苯二酚和对苯二酚的研究开发进展。

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Low temperature bleaching of wool with hydrogen peroxide using katalase as catalyst under acid condition has been studied as well as the related factors influencing it.

研究了在酸性条件下,以酶为催,羊毛双氧水低温工艺及相关因素的影响。

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S-Methyl-isothiourea sulfate was oxidized by hydrogen peroxide to give methylsulfonyl chloride in 70% yield in aqueous hydrochloric acid solution.The product was characterized by 1HNNR and IR.

在盐酸介质中,利用双氧水氧S-甲基异硫脲盐,合成了甲基磺酰氯,收率70%。

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科学60秒 听力 2015年1月合集

The method was tested with ammonia, cyclohexanone and hydrogen peroxide.

这种方法已经经过氨气,环己酮及过化氢

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The burst of hydrogen peroxide acts like a big " Please send help! " signal.

化氢爆炸就像一个巨大“请救命!”信号。

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CNN 10 学生英语 2022年5月合集

Hydrogen peroxide inside the robot is converted into a gas which moves its arms.

机器人体内化氢被转化成一种气体,从而实现机器人手臂移动。

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It converts glucose to gluconic acid and hydrogen peroxide.

它能将葡萄糖转化为葡萄糖酸和过化氢。

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假如有如果

This would cause things to oxidize, including large bodies of water, turning into hydrogen peroxide.

这将造成物体化,包括大量水体,它们将变成过化氢。

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Because your body actually makes hydrogen peroxide on its own!

因为其实你身体自己也会产生过化氢!

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Osmosis-解剖与生理

During an oxidative burst, the neutrophil produces lots of highly reactive oxygen molecules like hydrogen peroxide.

一次化爆发中,中性粒细胞会产生大量高活性分子,如过化氢。

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When you crack a typical glow-stick, you're allowing a hydrogen peroxide solution to react with diphenyl oxilate.

当你打开一个常见荧光棒时,就是过化氢和二苯醚反应。

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Osmosis-微生物

To test for this, a few drops of hydrogen peroxide are added to the colony of the suspected bacteria.

将几滴过化氢添加到待测细菌菌落中,可以对过化氢酶进行测试。

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VOA Special 2013年2月合集

The wax can be softened with mineral oil, glycerin or ear drops. Hydrogen peroxide or carbamide peroxide may also help.

他们说,矿物油,甘油或滴耳剂可以使耳垢软化,过化氢或过化脲也可以起到帮助。

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Problem is, hydrogen peroxide is such a great antiseptic because it doesn't care what kinds of cells it destroys.

问题是,过化氢抗菌性十分强,因为无论是什么细胞,它都一概杀死。

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Did You Know? – Verge Science

Then we pour hydrogen peroxide onto the resulting mess.

然后我们将过化氢倒产生烂摊子上。

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VOA Special 2018年4月合集

Hydrogen peroxide, a liquid sold in drug stores, works as a disinfectant.

化氢是一种药店出售体,可用作消毒剂。

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Discovery纪录片《认识细菌》

The heart of its process contains bleaching bats that use hydrogen peroxide, a substance derived from water that degrades back to water.

其工艺核心是使用过化氢漂白,化氢是一种从水中提取物质,可以降解回水。

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Osmosis-微生物

So, if catalase is present, like in staph saprophyticus, it makes hydrogen peroxide dissociate into water and oxygen, making the mixture foam.

如果存化氢酶(如腐生葡萄球菌),它会使过化氢分解成水和气,使混合物出现泡沫。

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Crash Course 综合篇

In our case, a mole of hydrogen peroxide weighs 34.014 grams.

我们例子中, 一摩尔过化氢重 34. 014 克。

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Reactive oxygen species include things like hydrogen peroxide, nitric oxides, and unstable molecules called “free radicals”, the rebellious teenagers of the molecular world.

活性包括过化氢、氮氢化物和一种不稳定分子——自由基,分子界叛逆青少年。

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化学 Crash Course

This bottle of hydrogen peroxide contains a solution and not just the solution to my problem of stained laundry.

这瓶双水含有一种,而不仅仅是解决我脏衣服问题方法。

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Crash Course 综合篇

Well, hydrogen peroxide is a polar molecule so it dissolves really well in water.

好吧,过化氢是一种极性分子, 因此它水中解度非常好。

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So your cells are stocked with catalase to help turn that hydrogen peroxide into water and oxygen before it can do any harm.

所以你细胞中存有过化氢酶,以帮助这些过化氢转换成水和气,以免产生任何危害。

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