英语词汇“phosphorus-nitrogen ratio”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	phosphorus-nitrogen ratio
释义	phosphorus-nitrogen ratio phosphorus-nitrogen ratio [′fäs·fə·rəs ′nī·trə·jən ′rā·shō] (oceanography) The proportion, by weight, of phosphorus to nitrogen in seawater or in plankton; the ratio is approximately 7:1.
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