英语词汇“actinium”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	actinium
释义	actinium n. Chem. a radioactive metallic element of the actinide series, occurring naturally in pitchblende. Usage Symb.: Ac.
随便看	ponce poncho pond ponder ponderable ponderation ponderosa ponderous pondweed pone pong pongal pongee pongid pongo poniard pons pont Pontefract-cake pontes pontifex pontiff pontifical pontificate pontifices

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