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

单词	ppb
释义	ppb in American English parts per billion Examples of 'ppb' in a sentence ppb Concentrations of methane have risen from 700 parts per billion (ppb) to 1,745 ppb. Times, Sunday Times (2009) Laboratory analysis is done on samples that are 100 ppb and below using atomic absorption spectrophotometry. The Scientist (2000)
随便看	keystone keystone state keystroke keytar key theme key trend key up keyway key west keyword key worker keyworker kg kgb kgotla kgs kh khabarovsk khachaturian khadafy khaddar khadi khadijah khaf khafre

英语词典包含298861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。

ppb in American English