英语词汇“ppb”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	ppb
释义	WordReference Random House Unabridged Dictionary of American English © 2024 PPB, Printing(in publishing) paper, printing, and binding. `Also, P.P.B.` ppb, Printing(in publishing) paper, printing, and binding. Weights and Measuresparts per billion. `Also, p.p.b.`
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