英语词汇ppm, p.p.m., 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, p.p.m., PPM
释义	ppm, p.p.m., PPM abbr. 1. page(s) per minute 【计】每分钟打印页数 2. parts per million 百万分率，百万分之…
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英汉双解词典包含548777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。