一种放射性的超铀金属元素,在用氦原子轰击铀时发现。 a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium.
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A radioactive transuranic metallic element produced by bombarding with helium nuclei.
一种放射性超铀元素在用氦核子轰击时发现。
A radioactive transuranic metallic element discovered by bombarding with helium atoms.
一种放射性的金属元素在用氦原子轰击时发现。
A silvery, metallic synthetic radioactive transuranic element.
一种合成的银色放射性超铀金属元素。
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