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	my nose was always in the air my nose was in the air my not so humble oppinion mynrp my nuggets my number came up my number comes up my nuts mynwa mynydd enlli mynydd llansadwrn action group myo myo- myo10 myo15 myo15a myo15b myo15bp myo15 gene myo16 myo16b myo16 variant protein myo18a myo18b myo19

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