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放射性元素
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tennessine
人工放射性元素,元素符号Ts,原子序数117,半衰期最长的同位素的质量数294。属周期系ⅦA族,是已知第二重的元素。以合成该元素的美国橡树岭国家实验室、范德堡(Vanderbilt)大学等研究机构所在的田纳西州(Tennessee)命名。曾被称为117号元素(ununseptium),符号Uus。
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non-severe plastic anemia
non Shannon type information inequality
non-Shannon-type information inequality
non-shivering thermogenesis
nonsilver halide photographic materials
nonsilver real time recor-ding materials
non-simple path
non-simplicity
non-simply connected
non simultaneous masking
non-simultaneous masking
nonsimultaneous masking
nonsingular
nonsingular algebraic variety
non-singular bilinear form
nonsingular bilinear form
nonsingular boundary point
nonsingular collineation
nonsingular complex
nonsingular conic
nonsingular correlation
nonsingular curve
nonsingular data
nonsingular distribution
nonsingular divisor
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