英语词汇p.p.m.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	p.p.m.
释义	p.p.m.abbr. parts per million [缩略]百万分之…
随便看	epilate epilation epilepsy epileptic epilimnion epilogist epilogue epimer epimeric epimerism epimerize epinasty epinephrine epiphanic epiphany epiphenomenal epiphenomenon epiphysis epiphytal epiphyte epiphytic episcopacy episcopal Episcopal Church episcopalian

英汉双解词典包含94788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。