caesium
英
['siːziəm]
美
['siːziəm]
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Noun:
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a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal
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用作名词 (n.)
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Caesium 137 is the preferred source type.
首选的能源类型是铯137。
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Caesium is one of the radio-contaminants discharged from nuclear power plants.
铯是核电站排放的放射性物质之一。
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