“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	construction of high-standard farmland construction of information dissemination mechanism construction of irreducible polynomials construction of Lyapunov function construction of market credit system in water conservancy construction industry construction of mechanical and electrical engineering construction of model for combustion reaction construction of new socialist countryside construction of new tea gardens construction of Paris by Henry IV construction of Paris During the Renaissance construction of pavement construction of police education and training base construction of prime numbers construction of primitive elements construction of resettlement sites for victims construction of roadway construction of sand prevention and control system of Taklimakan Desert Highway construction of shadows construction of sheltering woodland of Taklimakan Desert Highway construction of skull of rodent construction of steel structures construction of tables construction of the public security construction of three museums of Beijing

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