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

单词	protactinium
释义	protactinium noun uncountable chemistry UK /ˌprəʊtækˈtɪniəm/ DEFINITIONS1 1 a chemical element that is a radioactive metal. Its symbol is Pa. Synonyms and related words Chemical elements actinium alkali metal aluminium protactinium noun uncountable chemistry US /ˌproʊtækˈtɪniəm/ DEFINITIONS1 1 a chemical element that is a radioactive metal. Its symbol is Pa. Synonyms and related words Chemical elements actinium alkali metal aluminum
随便看	waggish waggle wagon wagon train wagtail wagwan waif waifs and strays wail wainscot wainscoting waist waistband waistcoat waist-deep -waisted waist-high waistline waist training wait wait a minute/second wait a minute/second wait and see wait around wait at table/on tables

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