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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；

is

vt.& vi. 是（be的三单形式；n. 存在；

radioactive

adj. 放射性的；

isotope

n. [化]同位素；

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）；

mainly

adv. 大部分地，主要地，基本上；

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；

nuclear

adj. 原子核的，原子能的，[细胞]细胞核的；

fission

n. <物>（原子的）分裂，裂变，<生>分裂生殖；
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他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
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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。
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一份耕耘，一份收获。
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半个小时内，他们就给每根电缆都换了标签。
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Cai had returned home and was described as in good spirits, CAA said.
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And then I want Cabal and Forgotten has unique building and unit.
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Any one may mouth out a passage with a theatrical cadence.
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Byron affected to despise posterity.
拜伦假装轻视后裔.