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1.Ingredient: KL sublimation medicinal preparation 80%, dextrorotary alkyne fifth heavenly stem chrysanthemum ester 2-3%, function medicinal preparation 1- 3%.

1.KL升华80%,右旋炔戊菊2-3%,功能1- 3%。

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2.The synthsis methods of N-sulfuryl substitude hetercycles by the reaction of alkyne with sulfamide catalyzed by diverse transition mentals were reviewed in this paper.

2.了不同过渡金催化下通过炔酰胺反应,形成N-取代的杂环化合物。

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garefowl, Gareth, Garfield, garfish, gargalanesthesia, gargalesthesia, garganey, garganite, gargantuan, gargarisma,

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3G, 401(K), a,

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化学 Crash Course

1.All the other naming rules apply to alkenes and alkynes too.

所有其他命名规则也适用于和炔机翻

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化学 Crash Course

2.If they've got a double bond, we call them alkenes, and those with triple bonds are alkynes.

如果它们有双键,我们称它们为,而那些有三键是炔机翻

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经济学人 Science and technology

3.In essence, the azide and the alkyne are like the two halves of a snap-together buckle.

从本质上讲,叠氮化物和就像个扣在两半。机翻

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化学 Crash Course

4.Thus, no isomers with alkynes. Phew. OK I'm done describing for the moment.

因此,与炔没有异构体。呸。好,我暂时完成描述。机翻

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化学 Crash Course

5.They can be alkanes or alkenes, sometimes, even rarely, alkynes.

它们可以是烷,有时甚至很少是炔机翻

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化学 Crash Course

6.Alkenes can be made into alkanes and alkynes can become either alkenes or alkanes depending on how many atoms are added.

可以变成烷,炔可以变成,具体取决于添加原子数。机翻

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化学 Crash Course

7.The triple bonds in alkynes, meanwhile, are composed of 1 sigma bond and 2 pi bonds for a total of 3 bonds.

同时,炔三键由 1 个 sigma 键和 2 个 pi 键组成,总共 3 个键。机翻

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经济学人 Science and technology

8.Copper ions are frequently poisonous to biological systems.So Dr Bertozzi decided to work on a way to make azides and alkynes react without their involvement.

铜离子通常对生物系统有毒。因此,Bertozzi 博士决定研究种方法,使叠氮化物和炔在没有它们参与情况下发生反应。机翻

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化学 Crash Course

9.You also learned a little bit about cis-trans isomerism and learned a few important reactions of alkenes and alkynes such as hydrogenation, halogenation, and polymerization.

您还了解了些顺反异构现象,并了解了和炔些重要反应,例如氢化、卤化和聚合。机翻

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经济学人 Science and technology

10.Her solution, which she published in 2004, was to include the alkyne half of the buckle in a molecule that would put it under strain and thus make it more reactive.

她于 2004 年发表解决方案是将带扣半包含在个分子中,使其处于应变状态,从而使其更具反应性。机翻

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化学 Crash Course

11.So three words representing three different groups of organic compounds: alkanes for all single bonds, alkenes if they contain double bonds, and alkynes if they contain one or more triple bonds.

所以三个词代表三组不同有机化合物:所有单键,含有双键,含有多个三键机翻

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化学 Crash Course

12.That may not sound like a big deal at first, but alkenes and alkynes don't have that kind of freedom, and that simple fact has a huge affect on their properties.

听这可能没什么大不了,但和炔没有那种自由度, 而这个简单事实对它们性质有巨大影响。机翻

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化学 Crash Course

13.If you paid attention, you learned that hydrocarbons with double bonds are called alkenes and those with triple bonds are called alkynes and that the naming rules are the same as for alkanes.

如果你注意话,你会发现带有双键碳氢化合物称为, 带有三键碳氢化合物称为炔, 并且命名规则与烷相同。机翻

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