英语词汇“radioactive standard”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	radioactive standard
释义	radioactive standard radioactive standard [¦rād·ē·ō′ak·tiv ′stan·dərd] (nucleonics) A sample of radioactive material which contains a known number and type of radioactive atoms at some definite time; used to calibrate radiation measuring instruments.
随便看	eumenides eumeninae eumenorrhea eumerism eumerogenesis eumesat eumetazoa eumetazoan eumetazoans eumetcal eumetnet eumetnet composite observing system eumetopias eumetopias jubatus eumetozoa eumetria eumetsat eumetsat advanced retransmission service eumetsat advisory committee of cooperating states eumetsat polar system eumhun eumic eumie eumik eumip

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