有奖纠错
| 划词

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴酸钠溶液中滴加适量的丙,丁基溴化铵催化下,高产率得到溴化碳。

评价该例句:好评差评指正

Trimethylaluminum(TMA),usually used in organic catalysis and organic synthesis,was synthesized by reaction of triethylaluminium (TEA) with methyl bromide on iron-stibonium complex catalyst.

用新的催化体系(铁-锑复催化剂)催化三乙基铝(TEA)与溴甲烷进行烷基交换反应三甲基铝(TMA)。

评价该例句:好评差评指正

TEM, ethidium bromide displacement assays, agarose gel electrophoresis and SAXS studies support the formation of lipoplexes for the transfection of CHO cells.

【文献摘要】A new transfection reagent based on nucleoside phosphocholine amphiphile leading to high transfection efficacy and low cytotoxicity is described.

评价该例句:好评差评指正

Methods Infrared spectrophotometry with potassium bromide tabletting was adopted,in which the extract was carried out with the absolute alcohol as the solvent.

方法以无水乙醇为溶剂进行提取,采用红外分度法(溴化钾压片)进行定性鉴别。

评价该例句:好评差评指正

Bromobutyraldehyde ethylene acetal was synthesized from crotonaldehyde by addition with hydrogen bromide and then acetalation with ethylene glycol with an overall yield of 80.

巴豆醛先与溴化氢加,再与乙二醇缩醛化得到3-溴代丁醛缩乙二醇,收率80.8%。

评价该例句:好评差评指正

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰基苯并咪唑和溴化钠为原料,照条件下用氯气置换出溴化钠中的溴素,药噻苯咪唑中间体-2-(二溴乙酰基)-苯并咪唑氢溴酸盐。

评价该例句:好评差评指正

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。

评价该例句:好评差评指正

The cocktail used generally contains sodium thiopental (to anaesthetise the condemned man), pancuronium bromide (to paralyse his muscles) and potassium chloride (to stop his heart).

一般注射用的混针剂含有硫喷妥钠(麻醉犯人),泮库溴铵(麻痹犯人肌肉)和氯化钾(停止犯人心跳)。

评价该例句:好评差评指正

By 52%-54% denisty indicator of lithium bromide, it is used to be absorptive refrigerant, hypnagogue and mitigative of medicine, and also to be electrolyte in ion-battery.

52%-54%浓度的溴化锂用作吸收式制冷剂。医药中,用作催眠剂和镇静剂。还用作锂电池的电解质。

评价该例句:好评差评指正

The paper studied the preparation of bromine from basic Magnesium bromide in the production of maltol and ethyl maltol, the synthesis of bromethyl from bromine, sulfur and alcothol.

研究了以麦芽酚、乙基麦芽酚生产中的碱式溴化镁废渣为原料制取溴;以溴、硫和乙醇溴乙烷的方法。

评价该例句:好评差评指正

Through the research on petroleum and nature gas, design a multi-source heatpump of single and double effect lithium bromide, the two stage heatpump unit, process of nature gas liquefaction etc.

通过对石油天然气物性的研究,利用热泵机组的特点,设计多源单效制冷供热热泵机组、双效热泵机组、双级热泵机组及天然气液化流程。

评价该例句:好评差评指正

用户正在搜索


nypel, nyphimycin, Nyquist, Nyquist rate, Nyreg, NYSA, nysconitrine, nyscozid, NYSE, Nyssa,

相似单词


3G, 401(K), a,

声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。

福尔摩斯基本绎法第二季

I've got nothing to offer the man other than a few banal bromides.

除了那些陈词滥调,我什么都说不了。

评价该例句:好评差评指正
Scishow 精选系列

There's still plenty of silver bromide left over, though.

但仍有很多的溴化银存在。

评价该例句:好评差评指正
斯泰尔斯庄园奇案

Mrs. Inglethorp had a box of bromide powders, which she occasionally took at night.

英格里桑夫人有一盒溴化物粉末, 她偶尔会在晚上服用。

评价该例句:好评差评指正
斯泰尔斯庄园奇案

That idea of yours about the bromides was a stroke of genius!

你关于溴化物的想法真是天才之举!

评价该例句:好评差评指正
斯泰尔斯庄园奇案

" I am still a little fogged as to how exactly the bromide business was done, " I remarked.

“对于溴化物业务究竟是如何完成的,我仍然有点迷糊,”我说。

评价该例句:好评差评指正
秘密花园(原版)

" If it amuses you perhaps it won't do you any harm. Did you take your bromide last night, Colin" ?

“如果它能让你开心,也许它不会对你造成任何伤害。你昨晚服用溴化物了吗,”?

评价该例句:好评差评指正
约时报 (New York Times)

It is a bipartisan bromide: In his November 2016 victory speech, Donald Trump promised to " harness the creative talents of our people."

201611月胜选,唐纳德·特朗普就承诺“发挥我们人民的创造性才能”。

评价该例句:好评差评指正
斯泰尔斯庄园奇案

This solution deposits in a few hours the greater part of the strychnine salt as an insoluble bromide in transparent crystals.

该溶液在数小时内将大部分士的宁盐沉淀为透明晶体的不溶性溴化物。

评价该例句:好评差评指正
化学 Crash Course

For instance, partial charges occur in hydrogen bromide because the electrons are more attracted to the bromide than they are to the hydrogen.

例如,部分电荷出现在溴化氢,因为电子更容易被溴化物吸引, 而不是被氢吸引。

评价该例句:好评差评指正
夜色温柔(上)

Violet McKisco collapsed and Mrs. Abrams took her to her room and gave her a bromide whereupon she fell comfortably asleep on the bed.

维奥莱特·麦基斯倒下了, 艾布拉姆斯夫人把她带到自己的房间, 给了她一张溴化物, 于是她在床上舒适地睡着了。

评价该例句:好评差评指正
研究生综合教程下

This fledgling field has already proved the truth of what once passed as bromide: What doesn't kill you can actually make you stronger.

大难不死,意志弥坚。

评价该例句:好评差评指正
斯泰尔斯庄园奇案

Anyway, she was familiar with the fact that the addition of a bromide to a mixture containing strychnine would cause the precipitation of the latter.

不管怎样,她很清楚在含有士的宁的混合物加入溴化物会导致后者沉淀。

评价该例句:好评差评指正
Scishow 精选系列

When a photon hits a crystal of silver bromide on a film strip, for instance, it knocks an electron off a negatively-charged bromide ion to create an atom of bromine.

例如,光子撞击胶卷表面的溴化银晶体时,从带负电的溴离子上“敲掉”一个电子,生成一个溴原子。

评价该例句:好评差评指正
TED-Ed(视频版)

Physicians like Sir Charles Locock hypothesized that sedative drugs might calm overactive brain activity, a theory he confirmed by treating seizures with a medication called potassium bromide.

像查尔斯·洛克克爵士这样的医生假设镇静药物可能会平息过度活跃的大脑活动,他通过使用一种叫做溴化钾的药物治疗癫痫发作证实了这一理论。

评价该例句:好评差评指正
Scishow 精选系列

But the researchers were able to make rubber self-heal by replacing the sulfur in the rubber with a pair of charged molecules, or ions, called butyl imidazolium and bromide.

但是,研究人员可以通过成对的带电分子或离子替换其的硫磺使这些橡胶自行修复,叫做丁基咪唑鎓盐和溴化物。

评价该例句:好评差评指正
Scishow 精选系列

Butyl imidazolium has a positive charge, and it's always accompanied by a negatively charged bromide, just like the ions of sodium and chloride that you find in table salt.

丁基咪唑鎓盐拥有正电荷,总是伴随着一个负电荷的溴化物,就像盐粒的钠离子和氯离子。

评价该例句:好评差评指正
时代周刊 (Time)

PRESIDENT TRUMP DELIVERED A fairly traditional mix of barbs and bromides during his 80-minute State of the Union address on Jan. 30, but one seemingly anodyne claim was actually pretty audacious.

在1月30日发表的80分钟国情咨文,总统特朗普继续走了冷嘲热讽和陈词滥调的老路,然而,其一个看似平平无奇的主张实际上是非常大胆的。

评价该例句:好评差评指正
斯泰尔斯庄园奇案

I found: first, a fragment of green material; second, a stain on the carpet near the window, still damp; thirdly, an empty box of bromide powders.

我发现:第一,绿色材料的碎片;第二,靠近窗户的地毯上有污渍,仍然潮湿;第三,一盒空溴化物粉末。

评价该例句:好评差评指正
研究生英语综合教程

This fledgling field has already proved the truth of what once passed as bromide

评价该例句:好评差评指正

用户正在搜索


nytril, Nytron, NYU, Nyx, nyxis, NZ, NZBC, NZD, Nzima, NZP,

相似单词


3G, 401(K), a,
  • 微信二维码

    关注我们的微信

  • 手机客户端二维码

    下载手机客户端

赞助商链接