英语词汇“francium”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	francium
释义	francium n. Chem. a radioactive metallic element occurring naturally in uranium and thorium ores. Usage Symb.: Fr. Etymology: mod.L f. France (the discoverer's country)
随便看	islet -ism ism Ismaili isn't ISO iso- isobar isocheim isochromatic isochronous isoclinal isoclinic isodynamic isoenzyme isogeotherm isogloss isogonic isohel isohyet isolate isolated isolating isolation isolationism

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