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They experimented with new reagents and succeeded.

"他们用新试剂做了试验,获得了成功。"

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In stead of using butyl nitrite and absolute ethyl-ether as reagents,in an improved method,cupferron.

本文介绍了以亚硝代替亚硝,用氯苯代替无水乙醚合成铜铁试剂的新工艺。

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As chemical reagent and corrodent of integrated plate.

作化学试剂和集成电路电镀板的消蚀剂。

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The purified polysaccharides is determined by colourimetry with sulfuric acid phenol as colourimetric reagent.

测得多糖的含量为65。

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The phenols were O-alkylated with 100% conversion and 100% selectivities using phenacyl bromide and benzyl bromide as alkylating reagents.

用溴代苯乙酮和溴苄为烷基化试剂,以高产率和100%的转化率以及100%的选择性得到了酚的O-烷基化产物。

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Abstract: One-pot synthesis method of diarylmethylamines was investigated using aryl lithium salt,thioformamide and aryl Grignard reagent.

摘 要: 由芳基锂盐、硫代甲酰胺和芳基格氏试剂一锅法合成了取代二芳基甲胺。

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Vessels : bell glass, flume, airer, alcohol burner, reagent bottles etc.

钟罩、水槽、干燥、酒精灯和各种规格试剂瓶。

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Synthesis of alkylated chlorosilane by Grignard reagent has been investigated,which provides a good way for preparation of organo-silicon compounds.

本文研究了用格氏法制备烷基取代氯硅烷的方法,为有机硅化合物的研制提供了一个较好的途径。

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Among other reagents used have been ??and titanous ion; a mixture of ferrous ion, oxygen, ascorbic acid , and ethylenetetraaminetetraacetic acid.

使用过的其它试剂有?Ш脱穷牙胱印⒀翘?离子氧,抗坏血和乙四胺四乙混合物。

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Contradistinctive test and statistic analysis were conducted among nine kinds of diagnostic reagents according to golden rule with western Blot (WB).

以免疫印迹法(WB)为金标准,用9种诊断试剂进行对比检测并统计分析。

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Gates expresses, so far, people should value aguish influence, should throw more measure and medicines and chemical reagents and aguish fight.

盖茨表示,到目前为止,人们视疟疾的影响,投入更多的措施及药品与疟疾斗争。

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Synthesis of polyethenoxyether phosphate using polyethenoxyether as initiator and using phosphorus pentoxide as parkerizing reagent, and its application were studied.

本文介绍了以聚氧乙烯醚为起始剂,五氧化二磷为磷化剂合成聚氧乙烯醚磷的过程;并且对其用也简要地加以说明。

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119.0 g of cyclopentyl bromide and 19.4 g of magnesium are reacted in ether or THF to give a cyclopentyl Grignard reagent.

119克环戊溴和19.4克镁在空气中或者四氢呋喃中加入环戊格林尼亚试剂作发生反

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Thanks to all the staff, SINNOWA has developed international-level fully automatic clinical chemistry analyzer, Coagulometer, Microplate Reader, Hematology Analyzer and diagnostic reagents.

在全体员工共同努力下,公司先后开发出达到国际先进水平的全自动生化分析仪、半自动生化分析仪、血液分析仪、血凝仪、酶标仪、多种诊断试剂等系列产品。

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Three strategies (additive, chiral auxiliary or chiral reagent) were developed to improve the diastereoselectivity or enantioselectivity of the ylide cyclopropanation reactions.

通过添加剂、手性辅基、手性试剂等3种策略,分别控制反的非对映选择性和对映选择性。

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A new method for determination of water content in ammonium-uranyl tricarbonate by Karl -Fisher reagent titration is described in this paper.

本文叙述了卡尔·费休尔试剂滴定法测定三碳铀酰铵中水分的方法,详细研究了测定水分的各种条件,特别是铀、铵和碳根的干扰情况。

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The selective oxidation of ethers by chromic reagent, peroxide, nitric acid, oxygen and ozonide, as well as the ethers anodic oxidation are particularly introduced.

主要介绍了铬(Ⅵ)类试剂,过氧化物、硝、氧和臭氧等各类氧化剂对醚选择性氧化以及醚的阳极电氧化研究状况。

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The effects of reactant ratio, reaction time, catalyst amount,the species and amount of deaquation reagent on the yield of benzaldehyde 1,3-butanediol acetal were investigated.

对苯甲醛与1,3-二醇在钒磷氧催化剂作用下的缩醛化反进行了研究,考察了醇醛比、反时间、催化剂用量、带水剂种类和体积等因素对苯甲醛1,3-二醇缩醛收率的影响。

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Abstract:Objective To discuss the biurea method for determination of total protein in serum of fat emulsion specimens with double reagents on the automated biochemical analyzer.

目的探讨双试剂双缩脲法在全自动生化仪中直接测定脂肪乳浊标本血清总蛋白。

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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.

介绍用过氧化氢和过氧化羧作羟基化剂,使苯酚羟基化生成邻苯二酚和对苯二酚的研究开发进展。

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政府双语文件

Intensive efforts have been made to develop drugs, vaccines, and testing reagents.

加强药物、疫苗和检测试剂研发。

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Special English慢速英语

Last November, the China Food and Drug Administration approved the test reagent.

国家食品药品监督管理总局于去年11月批准了该检测试剂。

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CRI在线 2020年6月合集

He says China will purchase 10,000 tests with reagents and other medical supplies for Belarus.

他表示,中国将采购10000份病毒检测试剂盒等医疗物资赠送白方。

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Special English慢速英语

The World Health Organization has approved an Ebola test reagent developed by a Shanghai firm.

世界卫生组织正式批准了上海司研发的埃博拉病毒检测试剂。

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Osmosis-呼吸

Liver cells are treated with a combination of two reagents called Periodic acid and Schiff, or PAS.

肝细胞可用碘酸-雪夫化学染色试剂处理,俗称PAS染色。

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Special English慢速英语

The Shanghai ZJ Bio-Tech Company is a high-tech enterprise which focuses on developing, manufacturing and selling gene diagnostic reagents.

上海之江生物科技股份有司是家专业从诊断试剂开发、生产及销售的国家高新技术企业。

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小谢尔顿第四季 _ 温馨搞笑家庭美剧 Young Sheldon 中英双语

Was it too much oxygen in the reagents?

试剂里是不是含太多氧了?

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经济学人 Science and technology

By injecting reagents into a solvent at high temperature, he created small seed crystals around which bigger ones could form.

通过在高温下将试剂注入溶剂中,他创造了小的晶种, 在这些晶种周围可以形成更大的晶种。

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经济学人(汇总)

Six-carbon rings are ubiquitous in organic chemistry, and by putting different side groups onto the reagents a vast variety of them can be turned out.

六碳环在有机化学中普遍存在,通过在试剂上加入不同的侧,可以产生多种六碳环。

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NPR音讯 2020年4月合集

State labs and hospitals are continually telling us they can't get enough chemical reagents, can't get enough swabs, machines are breaking down.

各州的实验室和医院不断告诉我们,他们无法获得足够的化学试剂,他们得不到足够的拭子,而且机器也出现了故障。

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经济学人 Science and technology

Mostly, these are based on the use of hydrogen instead of coke as the reagent which extracts the oxygen from iron-oxide ore.

大多数情况下,这些都是于使用氢气而不是焦炭作为从氧化铁矿石中提取氧气的试剂。

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科学杂志:人体健康

The newly developed sensor has all the reagents incorporated in a small piece of paper.

新开发的传感器将所有试剂都包含在张小纸片中。

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经济学人(汇总)

This is a way of joining two molecules into a six-carbon ring. One of the reagents contributes four carbon atoms to the ring and the other contributes two.

这是种将两个分子连接成六碳环的方法。其中种试剂为环贡献了四个碳原子,另种试剂则贡献了两个碳原子。

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《分钟地球》趣味科普

To turn nasal spray into meth, you’d need to first break its very strong covalent bonds, and that requires dangerous reagents and expensive, high-pressure lab equipment.

要将喷鼻剂变成冰毒, 您需要首先打破其非常牢固的共价键,而这需要危险的试剂和昂贵的高压实验室设备。

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经济学人-科技

If the environment being spread through is an animal embryo and the reagents are hormones that trigger the differentiation of the body's pigment-producing cells, the upshot is a distinct pattern of pigmentation.

如果扩散环境是动物胚胎,反应物是诱发身体色素产生细胞差异的荷尔蒙,那么结果就是斑驳的颜色。

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电台实验室

Of course, the FDA will require the LAL reagent to be used to test all of the vaccine batches that are produced, that's required for every vaccine right now.

当然,FDA 将要求使用 LAL 试剂来测试生产的所有疫苗批次,这是目前每种疫苗都需要的。

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