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单词 tetramethyllead
释义

tetramethyllead

noun

tet·​ra·​meth·​yl·​lead ˌte-trə-ˌme-thəl-ˈled How to pronounce tetramethyllead (audio)
: a volatile poisonous liquid Pb(CH3)4 used especially formerly as an antiknock agent

Word History

First Known Use

1964, in the meaning defined above

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更新时间:2024/12/23 18:52:27