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铯-137是一种放射性同位素, 主要由核分裂产生.用英语怎么说？

铯-137是一种放射性同位素, 主要由核分裂产生.

Caesium - 137 is a radioactive isotope, formed mainly through nuclear fission.

相关词汇
caesium is radioactive isotope formed mainly through nuclear fission

caesium

n. 铯；
例句
It is cool and filter the precipitated caesium dichloroiodide.
这是冷却,滤出沉淀的二氯碘化铯.

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。

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。

isotope

n. [化]同位素；
例句
...tritium, a radioactive isotope of hydrogen.
氢的放射性同位素氚

formed

adj. 成形的，成形加工的；v. 形成，构成，产生( form的过去式和过去分词 )，是，（使）成形，结成（友谊）；
例句
A frown formed between her arched brows.
她皱起两道弯眉。

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。

through

prep. 通过，穿过，经由，透过，凭借；adv. 从头到尾，彻底，自始至终；adj. （电话）接通，通话完毕，有洞的，直达的；
例句
The proposal was instantly voted through with two to one in favour, accompanied by enthusiastic applause...
在热烈的掌声中，提案以2比1的优势很快通过了表决。

nuclear

adj. 原子核的，原子能的，[细胞]细胞核的；
例句
...members of the advisory committee on the safety of nuclear installations...
核设施安全顾问委员会的成员

fission

n. <物>（原子的）分裂，裂变，<生>分裂生殖；
例句
The fission of the cell could be inhibited with certain chemicals.
细胞的裂变可以通过某些化学药品加以抑制.
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。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
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。
Supporters of the death penalty argue that it would deter criminals from carrying guns...
死刑的支持者认为它能阻吓罪犯携带枪支。
相关例句
Marsha had known Lyle since childhood, but now there was a difference.
玛莎从小就认识莱尔了, 可是现在他已形同路人.
We take up this issue by elaborating the detailed definition of work experience.
本文试图透过对工作经历的精细定义来探讨这个议题.
They were standing shoulder to shoulder.
他们肩并着肩站着.
" I'm thirsty. " " Would a glass of cold beer fill the bill? "
“ 我口渴 ” “ 来一杯冰啤酒足以解渴吧? ”
' steel in this class is tough, ductile and easily machined. "
这种钢强韧, 延展性好,而且容易加工.
Never keep on exercising if you have even the slightest chest pain.
即使你只感到很轻微的胸部疼痛，也不要继续锻炼。
That old factory is a real eyesore!
那老工厂实在碍眼！
a tussle over the closure of the local hospital
是否关闭地方医院的争论
He sat cross-legged on the floor.
他盘腿坐在地上。
Her red purse matches her shirt.
她的红手袋和她的裙子很相配。