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Methane and propane are alkanes.是什么意思？

Methane and propane are alkanes.

甲烷和丙烷是烷烃。

相关词汇
methane and propane are alkanes

methane

n. <化>甲烷，沼气；
例句
A methane molecule is composed of one carbon atom attached to four hydrogens.
甲烷分子由1个碳原子与4个氢原子构成。

and

conj. 和，与，而且，于是，然后，因此；
例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

propane

--
例句
Methane and propane are alkanes.
甲烷和丙烷是烷烃。

are

vi. （用于第二人称单复数现在时，第一、三人称复数现在时）是；n. 公亩（等于100平方米）；
例句
We are scared to abandon ourselves to our feelings in case we seem weak or out of control.
我们不敢放纵自己的情感，以免显得太过软弱或缺乏自制。

alkanes

烷类；
例句
The general uses of alkanes may be divided into three categories.
烷的一般用途可分为三个方面.
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He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
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The principal adrenocortical products are aldosterone, cortisol and dehydroepiandrosterone sulphate.
肾上腺皮质的主要产物为醛固酮 、 皮质醇和脱氢异雄酮硫酸盐.
A tap in the kitchen was dripping...
厨房的水龙头在滴水。
By microencapsulation, envelopment and mixing granulation, the stability of the CNN can be improved.
通过微囊化技术 、 外包及混合造粒都可以提高CNN的稳定性.
He has a big housing.
他有一间大的房屋。
The north wind howled around our cabin.
北风在我们小屋的周围怒号。
Some people are inclined to dismiss such questions as alarmist.
有些人倾向于将这样的问题斥为耸人听闻.
The world is peopled with worthies , and workers, useful and clever.
世界上住着高尚的人, 劳动的人, 有用又聪明.
He had not bargained on the mad jealousy which both women developed.
他没料到这两个女人会嫉妒得发狂。
Tony is always in his dorm room playing videogames on his PlayStation ( PS ).
汤尼老 是在他宿舍房间里打PS的电玩游戏.
They wear simple clothes and shun modern contrivances.
他们衣着简朴，不使用那些现代的发明物。