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镭
释义
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Encyclopedia
理学
放射性元素
释
radium
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天然放射性元素,元素符号Ra,原子序数88,半衰期最长的同位素的质量数226,属周期系ⅡA族,碱土金属元素。英文名来源于拉丁文radius(射线)。
Astronomy
全称:radium。缩写:Ra
镭
Chemistry
>放射化学与辐射化学>放射性元素化学>释义
radium
镭
随便看
mutual impedance
mutual independence
mutual induced electromotive force
mutual inductance
mutual inductance circuit
mutual induction
mutual induction electromotive force
mutual induction phenomenon
mutual inductor
mutual information
mutual information, MI
mutual inhibition
mutual inspection
mutual intensity
mutualism
mutualist facilitation hypothesis
mutualistic symbiosis
mutual kernels
mutually affected semantic generation
mutually-assured destruction
Mutually Assured Destruction,MAD
mutually complementary segments
mutually coprime elements
mutually disjoint
mutually disjoint events
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