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理学
放射性元素
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nihonium
人工放射性元素,元素符号Nh,原子序数113,半衰期最长的同位素的质量数286。属于周期系ⅢA族。以日本理化学研究所所属国的国名日语发音命名。曾被称为113号元素(ununtrium),符号Uut。
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Positioning system
positioning technology based on the ground mobile network
position inversion operator
position line
position location reporting system
position matching
position measurement
position micrometer
position of a game
position of point symmetry
position of readiness for action
position of similarity
position of symmetry
position of the conduction band
position of the people's police
position of the valence band
position on stage
position operator in position representation
position parameter
position plane
position point
position reporting
position representation
position retrieval
Positions and Proper Motions Star Catalogue
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