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释义
Encyclopedia
理学
放射性元素
释
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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pretibial myxedema
pretilachlor
pretopological
pretopology
Pretoria
Pretoria Convention
pretorsion
pretorsion theory
pre-trained models
pretransition effect
pretreatment
pretreatment acid
pretreatment of cocoon cooking
pretreatment of environmental sample
pretreatment of iron ore
pretreatment of redox titration
pretreatment of refractory gold ore
pre-treatment of sample
pretreatment of sample
pretrial conference
pretrigger
pre-trip information service
pretty good privacy
pretty good privacy, PGP
Pretty History with Civilization
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