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放射性元素
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promethium
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人工放射性元素,元素符号Pm,原子序数61,半衰期最长的同位素的质量数145.0,属周期系ⅢB族,镧系元素、稀土元素。由希腊神话中从天庭盗取火送到人间的英雄普罗米修斯(Prometheus)而命名。
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>放射化学与辐射化学>放射性元素化学>释义
promethium
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Internet search technology
internet security association and key management protocol
internet security association and key management protocol, ISAKMP
internet security protection management system
internet security protection technique measures
internet service audience maker
internet service demand coordinator
internet service market maker
internet service platform business model
Internet service provider
internet service provider
Internet services
internet small computer systems interface
internet spokesperson
internet storage name service
internet storage name service, iSNS
internet surfing service providing site
internet survey
internet surveys
internet television
internet topology
internet transaction
internet travel sales platform
internetware
Internet water army
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