英语词汇“ppm”的翻译、意思、用法、释义-英汉经管词典

单词	ppm
释义	ppm noun [ plural ] MEASURES ukus abbreviation for parts per million: the amount of a chemical in relation to the substance that contains it: Lead levels in the water were above 3,500 ppm.
随便看	EIN e-invoice EIS e-journal ejournal e-lance elastic elastic demand elasticity elasticity of demand elasticity of substitution elder care e-learning elect -elect election electrical electrical engineering electrician electronic electronic banking electronic bill of lading electronic book electronic broker electronic business

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