钋
1、化学性质类似于碲和铋的一种放射性金属元素。它存在于沥青铀矿及其他含铀矿物中,也存在于镭-铅废渣中及废氡管内,而在核反应堆中用中子轰击铋则可以生产大量的钋 。——元素符号Po。
皮埃尔·居里和她一起致力于解决这个问题,结果发现了新元素钋和镭。
Pierre Curie joined her in the work that she had undertaken to resolve this problem, and that led to the discovery of the new elements, polonium and radium.
1898年,他们发现了钋和镭。
In 1898 they discovered polonium and radium.
她们发现了钋和镭两种放射性物质。
They discovered two kinds of radioactive matters—Polunium and Radium.
把钋或者钍放在,开一个小口的含铅的盒子里面。
So, you've got polonium or thorium sitting inside this leaded box with one opening.
钋是高放射性的元素,金属。
Polonium is a highly radioactive element and a metalloid.
钋是一种具有天然辐射性的金属元素。
Polonium is a naturally radioactive metallic element.
最常见的钋是人工生产的。
The most common production of Polonium is by synthetically making it.
钋和镭都是重要的发现。
Polonium and radium were important discoveries.
利特维年科可能是第一个死于急性钋-210中毒的人。
Mr Litvinenko is thought to be the first person to die from acute polonium-210 poisoning.
钋是用来引爆核弹的。
Polonium is used to set off a nuclear bomb.
钋的同位素在自然界中的确存在,但是相当罕见。
The isotope does occur in nature but only extremely rarely.
这是因为钋—210的放射性是以高能阿尔法粒子的形式存在的。
This is because the radioactivity emanating from polonium-210 is in the form of highly energetic alpha particles.
它威胁说要重建宁边核设施并重新开始制造武器级别的钋。
It threatens to rebuild Yongbyon and start making weapons-grade plutonium again.
由于来源缺乏,商业用的钋210是在核反应堆人工制造的。
Due to its scarcity, Polonium-210 for commercial use is produced artificially in a nuclear reactor.
他们发现了钋和镭和被给予了第一个1903年诺贝尔物理学奖。
They discovered polonium and radium and were given the first Nobel Prize for physics in 1903.
一次是因为她在辐射方面的工作,另一次是因为她发现了镭元素和钋元素。
One for her work on radiation, and another discovering radium and polonium.
铀矿山坑道污水含有铀、镭、钍、钋等放射性核素,外排前必须加以处理。
There are some radioactive nuclides such as uranium, radium, thorium and polonium in pit effluent of uranium mine. The effluent must be treated before discharging.
铀矿山坑道污水含有铀、镭、钍、钋等放射性核素,外排前必须加以处理。
There are some radioactive nuclides such as uranium, radium, thorium and polonium in pit effluent of uranium mine.
利特维年科在伦敦某餐厅喝下了掺有放射性钋- 210的茶水后中毒身亡。
Litvinenko was poisoned by tea laced with radioactive polonium-210 at a restaurant in London.
由于钋本身稀有且所过之处留下的放射可被追踪(另见他文),应该能成为发掘信息的线索。
The polonium itself, with its rarity and trail of irradiated locations (see article) ought to be a telling clue.
居里夫人是一位具有化学专门知识的物理学家。1898年,她在法国巴黎发现了放射性物质的镭和钋。
Madame Curie was the physicist with expertise in chemistry that, in 1898, discovered the radioactive substances of radium and polonium in Paris, France.
在开始讨论这次演讲的话题之前,我还想回忆一下,镭和钋发现是皮埃尔·居里与我合作完成的。
Before broaching the subject of this lecture, I should like to recall that the discoveries of radium and of polonium were made by Pierre Curie in collaboration with me.
这个过程能压缩钚,并与此同时钚也会受到由钋组成的触发器散发出的中子的轰击,这样就引发了第二个阶段。
That compresses the plutonium while it is simultaneously bombarded with neutrons from a trigger made of polonium, and thus begins the second stage.
安德烈·卢戈沃伊——被控把放射性钋投入前克格勃特工亚历山大·利特维年科的茶里的人——得到普金的私人保护。
Andrei Lugovoi - the man who allegedly slipped radioactive polonium into former KGB agent Alexander Litvinenko's tea - enjoys the personal protection of Putin.
她实验室里面一个装有钋元素的密闭舱发生泄漏,因为这次偶然事故,她患上了白血病并于十年后(也就是1956年)死亡。
A sealed capsule of polonium exploded in her laboratory and her death from leukaemia a decade later, in 1956, was attributed to the accident.
钋- 210是自然存在的物质,但科学家们说,利特维年科一案中发现的高浓度显示,是核反应堆、或者是例子加速器生产的。
Polonium-210 occurs naturally, but scientists say the high concentrations found in the Litvinenko case indicate production at a nuclear reactor, or a particle accelerator.
伟大无私的她、谦虚质朴的高尚品格,坚毅刻苦、锲而不舍的顽强精神,她发现了两种元素——钋和镭,她一生获得了两次诺贝尔奖。
Selfless great simplicity, humility, her character, persistent, hard work, perseverance, indomitable spirit, she found two elements, polonium and radium, she won two Nobel prizes.
另一方面,氪-85是铀-235和钋-239的核裂变产物。 对氪-85的同位素含量测定可以用于监督国际核公约的执行情况。
On the other hand, analyses of 85 Kr, a fission product of uranium-235 and plutonium-239, can serve as a means to help verify compliance with the Nuclear Non-Proliferation Treaty.
1898年她发现了这些新放射性矿物中的第一种。为向她的祖国一波兰表示敬意,她把这种矿物取名为“钋”,并写了一篇关于钋的研究论文。
In 1898 she discovered the first of these new radioactive minerals, which she named "polonium" in honour of her motherland-Poland, and on which she wrote a research paper.
1898年她发现了这些新放射性矿物中的第一种。为向她的祖国一波兰表示敬意,她把这种矿物取名为“钋”,并写了一篇关于钋的研究论文。
In 1898 she discovered the first of these new radioactive minerals, which she named "polonium" in honour of her motherland-Poland, and on which she wrote a research paper.