英语词汇ppm怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	ppm
释义	ppm, p.p.m., PPM abbr.parts per million 百万分之…,百万分率
随便看	plaustral Plautine Plautus, Titus Maccius play playa playabilities playability playable play about play about with play a card playact playacting playactings playaction pass playactor playactors play a deep game play a double game play a doubtful card play advantages over someone play a fish play a flint play agent play a good game

英汉双解词典包含483723条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。