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 ppm expr: abbreviation (parts per million) SC 百万分之
随便看	morphology morphosyntactic morphosyntax morrow morse morse code morsel morselling mortadella mortal mortality mortally mortal remains mortal sin mortar mortarboard mortared mortgage mortgaged mortgagee mortgages mortgagor mortician mortiferous mortification

英汉双解词典包含74752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。