“radioactive standard”的概念、定义、翻译、参考文献-科学参考

单词	radioactive standard
释义	radioactive standard Encyclopedia 理学原子核释 radioactive standard放射性标准经过精确测定、比对、公认的，可作为放射性活度计量标准的放射性物质或制品。放射性标准以单位时间内发生的核衰变数来计量，单位为贝可（Bq）。 Chemistry ＞放射化学与辐射化学＞基础放射化学＞释义 radioactive standard放射性标准
随便看	feasible method feasible path feasible perturbation feasible point feasible program feasible region feasible restriction feasible set feasible solution feasible vector feasibly solvability Feast Feast of Christ the King Feast of the Annunciation Feast of the Ascension Feast of the Assumption of Mary Feast of the Circumcision of Christ Feast of the Holy Family Feast of the Presentation of Jesus Christ Feast of the Presentation of Mary Feast of the Purification of the Blessed Virgin Mary Feast of the Transfiguration feather feather cock's comb feather cockscomb seed

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