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单词
average life
释义
average life
Encyclopedia
理学
原子核
释
average life; mean life
平均寿命
放射性核素所有原子的平均存活时间。对于按指数规律衰变的体系,平均寿命是放射性核素的原子核数目衰减至起始时刻的1/e所需的时间。用符号τ表示。
Astronomy
average life
平均寿命
Chemistry
>放射化学与辐射化学>基础放射化学>释义
average life; mean life
平均寿命
随便看
Interim Regulations of the People's Republic of China Governing Land-use Tax in Cities and Towns
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Interim Regulations of the People's Republic of China on Urban Maintenance and Construction Tax
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interim water flooding
Interim Work Regulations on the Full-time Primary School (Draft)
Interim Work Regulations on the Full-Time Secondary School (Draft)
inter-induction between yin and yang
interionic
interior
interior algorithm
interior alternate angles
interior angle
interior angle bisector
interior angles on the same side
Interior Area
interior assembled ceiling systems
interior assembled ground systems
interior assembled wall systems
interior automorphism
interior ballistic of missle ejection
interior ballistics
interior bisector
interior boundary problem
interior boundary-value problem
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