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放射性元素
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人工放射性元素,元素符号Mc,原子序数115,半衰期最长的同位素的质量数290。属周期系ⅤA族。以俄罗斯杜布纳联合核子研究所所在地点莫斯科州(Moscow Oblast)命名。曾被称为115号元素(ununpentium),符号Unp。
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>放射化学与辐射化学>放射性元素化学>释义
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navigational lighting aid system
navigational object
navigational planet
navigational satellite
navigational sports
navigational star
navigational star number
navigational time scale
navigational triangle
navigation and positioning
navigation and positioning on the sea
navigation and search on complex network
navigation aqueduct
navigation brain system
navigation by earth reference
navigation by map-matching
navigation by space reference
navigation channel of Xijiang River
navigation clock
navigation constellation
navigation coordinate system
navigation delay calibration
navigation disease monitoring
navigation electronic map
navigation electronic warfare
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