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词汇
總貝他活性
释义
總貝他活性
zǒng bèi tā huó xìng
貝他,指貝他射線,大部分的核種都會發出貝他射線,而貝他射線來自大自然或人為的核能電廠、核爆等。總貝他活性指各放射性核種所發出貝他射線的總放射性強度,常用於環境輻射的偵測。為維護大眾安全,政府機關多會例行從事環境中總貝他活性的偵測。
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更新时间:2026/8/18 12:15:52