Definition of ppm in English:

ppm

abbreviation

abbreviation

单词	ppm
释义	Definition of ppm in English: ppm abbreviation 1Part(s) per million. 百万分率 water containing 1 ppm fluoride 含百万分之一氟化物的水。 2Computing Page(s) per minute, a measure of the speed of printers. 〔计算机〕每分钟打印页数 Definition of ppm in US English: ppm abbreviation 1Part(s) per million. 百万分率 water containing 1 ppm fluoride 含百万分之一氟化物的水。 2Computing Page(s) per minute, a measure of the speed of printers. 〔计算机〕每分钟打印页数
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