“average life”的概念、定义、翻译、参考文献-科学参考

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	Yellow Journalism Yellowknife Yellow Land yellow leaf blotch of alfalfa Yellow Leaves by Gong Xian yellow-margined box turtle yellow melon leaf beetle yellow mud drum yellow news yellow patch yellow phosphorus yellow pond turtle yellow prussiate of potash yellow resident registration Yellow River Yellow River Cantata Yellow River Conservancy Commission of the Ministry of Water Resources Yellow River Conservancy Press Yellow River diversion over Huaihe river Yellow River estuary Yellow River flood in 1958 Yellow River flood in 1982 Yellow River Flows to the East Yellow River Institute of Hydraulic Research yellow River Levee

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