The thorny problems on oxygen demand monitoring were introduced.Then an automated instrument for monitoring oxygen demand of waster water was described in details.

　
英 美
  • 介紹了當前廢水中需氧量在線(xiàn)測量所面臨的問(wèn)題，詳細地描述了一種廢水中需氧量的自動(dòng)監測設備及其穩定可靠、無(wú)害的特點(diǎn)。
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