英语词汇“protactinium”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	protactinium
释义	protactinium n. Chem. a radioactive metallic element whose chief isotope yields actinium by decay. Usage Symb.: Pa. Etymology: G (as PROTO-, ACTINIUM)
随便看	decigram decile decilitre decimal decimalize decimate decimetre decipher decision decisive deck -decker deckle declaim declamation declarant declaration declare declassify declension declination decline declivity declutch Deco

英语词典包含43808条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。