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Francium is the densest of the Alkali Metals and also radioactive.是什么意思？

Francium is the densest of the Alkali Metals and also radioactive.

钫是碱金属中密度最大的,具有放射性.

相关词汇
francium is the densest of alkali metals and also radioactive

francium

n. （放射性元素）钫（符Fr）；
例句
The half - life of francium is 22 minutes.
钫的半衰期是22分钟.

is

vt.& vi. 是（be的三单形式；n. 存在；
例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；
例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

densest

--
例句
Francium is the densest of the Alkali Metals and also radioactive.
钫是碱金属中密度最大的,具有放射性.

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；
例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

alkali

n. 碱；
例句
Water, acrylonitrile and the galactomannan gum are added to a reactor with an alkali metal hydroxide.
水 、 丙烯晴和半乳甘露聚糖胶,同碱金属氢氧化物在一起,加入到反应器中.

metals

n. 金属( metal的名词复数 )，钢轨，五金；
例句
Zinc is used to protect other metals from corrosion.
锌被用来保护其他金属不受腐蚀。

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。

also

adv. 也，同样，并且；conj. 另外；
例句
The media have also abetted the feeling of unreality.
媒体也在一旁对这种非现实感推波助澜。

radioactive

adj. 放射性的；
例句
Wine is radioactive but few people stop drinking it on that account.
酒是有放射性的，可是很少有人因此而戒酒。
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
Day air - cooled, fragrant roasts sweet potato depth the Hefei resident's affection.
天气凉了, 香喷喷的烤红薯深受合肥市民的喜爱.
...a speech laced with humour.
充满幽默的讲话
He could do his work in life efficiently with a background of domestic comforts.
安逸的家庭环境使他能够有效地从事他的事业。
I have a hunch that he didn’t really want to go.
我有这么一种感觉, 他并不真正想去。
His skin was agleam with sweat.
他的皮肤因出汗而闪闪发光。
Spiral bacillus are good for human health if taken regularly.
长期服用骡菌对身体有益.
The compound of acryloyl chloride was synthesized by benzoyl chlorid and crylic acid.
利用苯甲酰氯与丙烯酸反应制备丙烯酰氯.
You're sidestepping my question.
你回避了我要说的问题.
I'm a bit of a stickler for accuracy.
我总是要求精确。
With his wonted , collected and stately mien, he crossed the unhallowed threshold.
他摆出平时那种泰然自若的庄严态度, 跨过那个污浊的门槛.