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单词
astatine
释义
astatine
Encyclopedia
理学
放射性元素
释
astatine
砹
人工放射性元素,元素符号At,原子序数85,半衰期最长的同位素的质量数210,属周期系ⅦA族,卤族元素。英文名称来源于希腊文astatos(不稳定)。
Physics
astatine
砹
85
At
{化}
Astronomy
astatine
缩写:At。砹
Chemistry
>放射化学与辐射化学>放射性元素化学>释义
astatine
砹
>放射化学与辐射化学>放射性元素化学>释义
astatine
砈
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Fixed assets depreciation
fixed assets investment law
fixed attribute
fixed-axis rotation
fixed-axis rotation of rigid bodies
fixed basis
fixed bed
fixed bed combustion
fixedbed electrode
fixed bed gasification
fixed bed gasifier
fixed bed reactor
fixed bed solid adsorptive desiccant system
fixed bias
fixed block
fixed boundary condition
fixed branch point
fixed buoy observation
fixed capital
fixed carbon of coal
fixed cell
fixed-charge problems
fixed circle
fixed Communication Satellite
fixed compensation
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