英语词汇“十亿分之”的翻译、意思、用法、释义-英汉汉英词典

单词	十亿分之
释义	十亿分之abbr.PPBparts per billion〈美〉十亿分率，十亿分之…国家教育研究院双语词汇双向☞十亿分之--十亿分比
随便看	water catchment area water cavity water cayo water celerity water celery water cell water cellar water cement water-cement watercement water-cementitious materials ratio water cement ratio water-cement ratio water-cement ratio law water--chalybeate water chamber water channel water channel between two hills water channel of gill water charger water charging system water check water check valve water chemical treatment system water chemistry