有奖纠错
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But an unexpected fact was noted: certain minerals( pitchblende, chalcolite, autunite) had a greater activity than might be expected on the basis of their uranium or thorium content.

但是一个外的事实引起了我的些矿物质(青铀矿物质、铀云母或铀云母)活性比根据其铀或针含断的要高。

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We found that pitchblende contains at least two radioactive materials, one of which, accompanying bismuth, has been given the name polonium, while the other, paired with barium, has been called radium.

我们发现沥青铀矿物中至少含有两种放射性物质:与铋伴生的命名为钋,与钡伴生的命名为镭。

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TED-Ed(视频版)

Next, by focusing on a super radioactive ore called pitchblende, the Curies realized that uranium alone couldn't be creating all the radiation.

接下来, 专注于一种叫做沥的超级放射性石,居里夫妇意识到本身不可能产生所有的辐射。

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TED-Ed(视频版)

By 1902, the Curies had extracted a tenth of a gram of pure radium chloride salt from several tons of pitchblende, an incredible feat at the time.

到 1902 年,居里夫妇从几吨沥中提取了十分之一克的纯氯化镭盐,这在当时是一项了不起的壮举。

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