半衰期 half life ; half life period ; half period ; [核] half-time
有效半衰期 [特医] effective half-life ; effective halt ; Teff ; effective half-life period
被引半衰期 Cited Half-life ; quoted article half-life
放射性半衰期 [核] radioactive half-life ; life
引用半衰期 Cited Half-life ; Citing Half ; life
生物半衰期 [特医] biological half-life ; biological half life period ; biologic half life
停留半衰期 residence half-time
生物学半衰期 biological half life period ; biological half time ; B
代谢半衰期 metabolic half-life
老衰期 gerontic stage
指出1986～1988年期间，黑潮又发生一次大弯曲现象，并对这次大弯曲的生成、强盛、衰消过程做了分析。
The results show that a large meander of the Kuroshio appeared again during 1986—1988. The formation, maturity and decline of this large meander are explored in this study.
唐代肃宗756至顺宗805时期（公元756年—公元805年）是大唐王朝由盛转衰的重要时期。
The Suzong to Shunzong Period (756 AD-805 AD) was an important period for Tang Dynasty because it witnessed the decline and fall of the Great Empire.
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