一种放射性元素

A highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium.

一种极不稳定的放射性元素，铀和钍腐烂的产物。

An agent, such as ultraviolet light or a radioactive element, that can induce or increase the frequency of mutation in an organism.

诱变剂有机体中的一种可诱发或者增加突变的次数的因子，如紫外线或放射性元素

Arguments and evidence cited against a miraculous origin of the shroud images include a letter from a medieval bishop to the Avignon pope claiming personal knowledge that the image was cleverly painted to gain money from pilgrims; radiocarbon tests in 1988 that yielded a medieval timeframe for the cloths fabrication; and analysis of the image by microscopist Walter McCrone, who concluded ordinary pigments were used.

争论和证据却与裹尸布的神奇起源相反，包括一封中世纪的主教写给教宗阿维尼翁的信，声称肖像是有人运用容貌知识聪明地印上去，为了从朝圣者身上获得金钱；1988年，碳的放射性同位元素测试得出这是一块中世纪时期制造的伪造物；分析肖像的显射镜技术人员沃尔特指出，这只是使用了一种平常的颜料。

The immediate product of the radioactive decay of an element.

一种碱金属属的放射性元素，是锕瓦解的产物。

There was in nature another element which sent out radioactivity.

在自然界里存在着另一种具有放射性的元素。

Now I'm injecting a material that's tagged with a radioisotope.

我现在在注射一种以放射性同位元素做为标记的物质

Academic achievement:(1) early study of the electromagnetic wave transmitting and receiving;(2) found that there is penetration of uranium weak penetration of the α and β two kinds of radiation;(3) and Soddy worked together to propose release of radioactive atoms can be α or β atom into another element.

学术成就：（1）早年研究电磁波的发射和接收；（2）发现铀中有穿透力弱的α和穿透力强的β两种辐射；（3）和索迪合作提出放射性原子可以通过放出α或β变成另一种元素的原子。

A radioactive transuranic element which has been ''.

一种合成的放射性超铀元素。

The researchers fired a beam of calcium ions, each containing 20 protons, into a target of californium, a highly radioactive synthetic substance with 98 protons.

他们轰击了一束每个原子中含有20个质子的钙离子，得到了锎，一种原子核中含有98个质子的更高级人造放射性元素。

Iran had first told the International Atomic Energy Agency that its last experiments with the reprocessing of plutonium took place in 1993 but revised that date to 1998, according to a draft speech deputy IAEA chief Pierre Goldschmidt is due to make to the agency's board of governors on Thursday.

Plutonium：钚，一种天然地放射性银色超铀金属元素，存在于铀矿中，对铀元素进行中子轰击而人工制成。它是一种核辐射毒素，特别是能够被骨髓吸收，并被用作一种核反应燃料并用在核武器中。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新