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理学
放射性元素
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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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turning test
turning the head to stronge side during the swallow
turning tool
turning wave
turnip
Turnip aphid
turnip root fly
turnip yellow mosaic virus,TYMV
turnkey system
turnmeter
turn Mooney viscosity
turn [Mooney] viscosity
turn morality into legalization
turn of a helical line
turn of a screw
turn-off age
turn-off characteristic
turn-off mass
turn-off point
turn-off point from main-sequence
turn-off thyristor
turnout
turnout bridge drainage
turn-out bridge of straddle type monorail
Turnover
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