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active chlorine造句

"active chlorine"是什么意思   

例句與造句

  1. Spectrophotometric determination of trace amounts of active chlorine with the iodide - rhodamine b - polyvinyl alcohol system
    光度法測定水中痕量有效氯
  2. It's difficult to find active chlorine in a sentence. 用active chlorine造句挺難的

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