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释义
Encyclopedia
理学
放射性元素
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meitnerium
人工放射性元素,元素符号Mt,原子序数109,半衰期最长的同位素的质量数278。属周期系Ⅷ族。为纪念核物理学家和放射化学家L.迈特纳[注]而命名。曾被称为109号元素(unnilennium),符号Une。
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digital input
digital instrument with 5 and a half above
digital instrument with 5 and a half below (including portable)
digital integral installation
Digital Interface
digital intermediate
digitalization of film and television industry
digitalized construction
digitalized design
digitalized disaster prevention
digitalized engineering
digitalized operation and maintenance
digital land
digital landscape model
digital launching process
digital learning resources
digital library
digital library framework
Digital Library Promotion Project
digital library resources
digital library system
digital library technology
digital lighting and color matching
digital light processing
digital light processing display
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