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Chemical bond mainly includes electrovalent bonds , covalent bonds, and metalic bonds.是什么意思？

Chemical bond mainly includes electrovalent bonds , covalent bonds, and metalic bonds.

化学键主要有离子键 、 共价键 、 金属键.

相关词汇
chemical bond mainly includes electrovalent bonds covalent and

chemical

adj. 化学的，用化学方法制造的，化学作用的；n. 化学药品，化学制品；
例句
The chemical companies had amalgamated into a vast conglomerate...
那些化学品公司已经合并成一个庞大的企业集团。

bond

n. 纽带，联系，债券，保释金；v. 使结合，建立互信关系，与…紧密联系，与…黏合；
例句
The eight-year bond will bear annual interest of 10.5%.
这种8年期的债券年利率为10.5%。

mainly

adv. 大部分地，主要地，基本上；
例句
Thousands of people, mainly Zulus, assembled in a stadium in Thokoza...
数以千计的人，主要是祖鲁族人，聚集在托考查的一个体育场里。

includes

v. 包括( include的第三人称单数 )，包含，列入，包住；
例句
The show includes canvases by masters like Carpaccio, Canaletto and Guardi.
画展上有卡尔帕乔、卡纳莱托和瓜尔迪等大师们的油画作品。

electrovalent

adj. 电价的；
例句
Chemical bond mainly includes electrovalent bonds , covalent bonds, and metalic bonds.
化学键主要有离子键 、 共价键 、 金属键.

bonds

n. 纽带（ bond的名词复数 ），黏合，联系，债券；
例句
There are tangible signs that the republic's successfully breaking its bonds with Moscow.
有明显迹象表明该共和国成功地断绝了与莫斯科的密切联系。

covalent

adj. 共有原子价的，共价的；
例句
In covalent bonding, atoms share electrons.
在共价键联中, 原子共有电子.

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。
热门例句
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。
相关例句
Our juggles are essentially built from relationships ─ with our partners alz, coworkers and friends.
我们的事业和家庭实际上都是建立于各种关系之上的──与伴侣、孩子 、 同事和朋友的关系.
Unnatural amino acid site - directed mutagenesis was applied to adenylate kinase to study its mechanism.
非天然氨基酸定点突变成功地应用在腺苷酸激酶上来研究其作用机理.
convalesce after an illness
病后逐渐复元
to pay your hydro bill
付电费
'Yaaaaaaa,' Carla let rip with the cry of the Valkyries.
“呀——”卡拉放开喉咙，发出女武神瓦尔基里一般的嘶喊声。
She slung her coat over her desk chair.
她把外套搭在书桌前的椅子上。
That may be true, but industry's making us wealthier.
这也许是真的, 不过工业正使我们变得更富裕.
He looks like a bum who's been drowning his sorrows in sleazy dives.
他看起来象个游手好闲之辈,整天泡在肮脏的下等酒吧借酒消愁.
The reaction kinetics leading ilmenite directly by acid was investigated.
研究了盐酸直接浸取钛铁矿的浸取动力学.
The money made life more bearable for her.
这笔钱使她的日子还过得去。