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So little is known about it, because there is only about 1 ATOM OF FRANCIUM IN A CUBIC FOOT OF URANIUM ORE!

对它所少,因为在1立方英的铀矿石中,仅有1子!

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Havre, havurah, haw, Hawaii, Hawaii time, Hawaii Volcanoes National Park, Hawaiian, Hawaiian guitar, hawaiian islands, Hawash,

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3G, 401(K), a,

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A lump of Plutonium, which is very radioactive, is really quite warm to touch. And francium, which I think is more radioactive, is probably very warm.

一块很强的钚,起来真的很暖和。我认为更强的钫可能非常暖和。

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hawk-eyed, hawking, Hawkins, hawkish, hawkite, hawkmoth, hawk-nosed, Hawks, hawksbill, hawkshaw,

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3G, 401(K), a,
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