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词汇 C2H2
分类 英语词汇 英语翻译词典
释义

C2H2

英语例句库

The uvular r's of French and the fricative, glottal ch's of German (and Scots) are essential to one's imagination of these languages and their speakers.

人们一听到法语的小舌音、摩擦音,或者德语(和苏格兰语)的喉音,就会对语言本身和语言的使用者产生各种想象。

Conclusion Cerebroprotein hydrolysate conta ins abundantly essential amino acid and small molecular peptid to human brain wi ch can inprove functional activation of human brain cells .

脑蛋白水解物富含人脑必须氨基酸及小分子肽,能改善脑细胞功能活性。

原声例句
航海英语听力

26.keep contact with taufig control on vhf ch 06

用VHF 6频道与陶非克港调联系。

大叔教你学初级英语

Maggie, what starts with a sound CH? Oh, chicken! No. Try again.

麦琪,什么东西是以读音CH开头的?哦,chicken(小鸡)! 不对。再猜。

爷爷奶奶的发音课堂

It's mishap. It's an S sound, S, not a CH.

事故。发的是 S 这个音,而不是 CH。

大叔教你学初级英语

CH. CH. Chocolate for me. Yummy. Yummy. Mmm. Oh, I like chocolate.

CH CH,我有巧克力吃了。好吃。好吃。嗯。哦,我喜欢巧克力。

Emma的美味英语

And there's that CH sound again.

还有 CH 这个音。

爷爷奶奶的发音课堂

Yeah. It doesn't start with CH or SH sound.

是的。它不是以 CH 或 SH 的音开头的。

看热点学英语

Normally, when we see c-h it's pronounced 'ch' like cheese.

通常情况,当我们看到 c-h 时,它被发成“ch”,比如在 cheese 中的发音。

大叔教你学初级英语

Are you ready? Listen carefully. The sound you need is CH. What is it?

准备好了吗?仔细听哦。你们需要的读音是CH。是什么呢?

你的英语教练 Stefanie

So tree, we have a strong CH sound there, tree tree tree.

Tree有一个很强的ch音。

跟Lucy学听力

That's because 'tuh' and 'yah' comes together to make a 'ch' sound.

这是因为" tuh" 与" yah" 合在一起变成了" ch" 。

Emma的美味英语

Make sure you're really landing that last consonant sound there, that CH sound.

一定要把最后一个辅音发出来,CH 音。

跟Hadar学美式发音

And then when we connect those two words together, we hear a 'ch' sound.

然后当我们把这两个单词连在一起时,我们会听到一个“ch”音。

和剑桥外教学英语

When the verb ends in CH, SH, X, SS or ZZ, we add ES.

当动词以 CH、SH、X、SS 或 ZZ 结尾时,我们加上 ES。

Emma的美味英语

Pay attention to that CH sound at the beginning of the word.

请注意单词开头的那个CH音。

跟Hadar学美式发音

And a consonant is a sound that stops like k, ch, r, th.

辅音是以 k,ch,r,th 结尾的音。

Max带你学发音

But lots of people say it " you-chube" , so the T becomes a " ch" .

但是很多人把它读成“you-chube”,所以 T 变成了“ch”的发音。

跟Hadar学美式发音

When the tr go together it often sounds like a ch sound instead of a t.

当/tr/连在一起时,它听起来像/ch/而不是/t/。

跟Hadar学美式发音

TR, which turns into a " ch" sound, and then the A as in 'cat'.

TR 变成“ch”音,然后是“cat”中的 A 音。

Engvid超级外教Ronnie-发音

You're going to " chew" . " Ch, ch, ch, chew" .

你要“咀嚼”。 “Ch,ch,ch,咀嚼”。

跟Hadar学美式发音

But when people speak fast, what happens is that these two words connect and turn into a 'ch' sound.

但是当人们说得很快时,这两个词会连接起来,变成“ch”音。

中文百科

乙炔 Acetylene

(重定向自C2H2)

乙炔,俗称风煤电石气电土,是炔烃化合物系列中体积最小的一员,主要作工业用途,特别是烧焊金属方面。

乙炔于1836年由英国科学家艾德蒙·戴维(Edmund Davy)发现,化学式为C2H2,有一个如下图所示的直线型结构:

乙炔在室温下是无色、极易燃的气体。纯乙炔是无臭的,但工业用乙炔由于含有硫化氢、磷化氢等杂质,而有一股大蒜的气味。乙炔的化学能主要贮存于它的三键中。

在摄氏400度以上, 乙炔会聚合生成乙烯基乙炔(C4H4)和苯(C6H6)。在摄氏900度以上则会形成炭黑。

碳酸钙(石灰岩)和煤炭是生产乙炔的主要原料。首先,碳酸钙会转化为氧化钙,煤炭则转化为焦炭。然后氧化钙和焦炭会发生反应形成碳化钙和一氧化碳:

英语百科

Acetylene 乙炔

(重定向自C2H2)

Acetylene (systematic name: ethyne) is the chemical compound with the formula C2H2. It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block. It is unstable in its pure form and thus is usually handled as a solution. Pure acetylene is odorless, but commercial grades usually have a marked odor due to impurities.

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