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type="audio/ogg"> <source src="https://tts.baidu.com/text2audio?cuid=baike&lan=zh&ctp=1&pdt=301&vol=5&rate=32&per=0&tex=%e6%80%8e%e4%b9%88%e9%80%89%e6%8b%a9%e9%80%82%e5%90%88%e7%9a%84cod%e6%a3%80%e6%b5%8b%e4%bb%aa%e5%91%a2%3f%e4%b8%80%e3%80%81COD%e6%a3%80%e6%b5%8b%e4%bb%aa%e7%89%b9%e7%82%b9%e4%b8%ba%e4%ba%86*%e5%a5%bd%e5%9c%b0%e8%be%be%e5%88%b0%e5%90%84%e7%a7%8d%e5%90%84%e6%a0%b7%e5%bf%85%e9%a1%bb%ef%bc%8ccod%e6%a3%80%e6%b5%8b%e4%bb%aa%e6%8f%90%e5%8d%87%e4%ba%86%e6%95%b0%e6%8d%ae%e5%82%a8%e5%ad%98%e3%80%81%e6%89%93%e5%8d%b0%e5%87%ba%e5%92%8cu+**+%e6%8f%92%e5%8f%a3%ef%bc%8c%e4%be%bf%e6%8d%b7%e4%bc%a0%e8%be%93%e6%95%b0%e6%8d%ae%e5%88%b0%e7%94%b5%e5%ad%90%e8%ae%a1%e7%ae%97%e6%9c%ba%e4%b8%8a%3b%e4%b8%ba%e4%ba%86*%e5%a5%bd%e5%9c%b0%e8%be%be%e5%88%b0%e6%88%b7%e5%a4%96%e5%ba%94%e7%94%a8%ef%bc%8c%e8%ae%be%e8%ae%a1%e6%96%b9%e6%a1%88%e4%ba%86%e6%90%ba%e5%b8%a6%e5%bc%8f%e4%bb%aa%e5%99%a8%e3%80%81%e5%86%85%e5%b5%8c%e5%a4%a7%e5%ae%b9%e9%87%8f%e9%94%82%e7%94%b5%e6%b1%a0%e7%ad%89%3b%e5%bc%80%e5%85%b3%e7%94%b5%e6%ba%90%e5%b8%b8%e8%a7%81%e6%95%85%e9%9a%9c%e7%bb%b4%e6%8a%a4%e3%80%82%e4%b8%80%e9%94%ae%e6%81%a2%e5%a4%8d%e5%87%ba%e5%8e%82%e8%ae%be%e7%bd%ae%e5%92%8c%e5%88%ab%e7%9a%84%e4%bd%9c%e7%94%a8%e3%80%82%e5%8f%af%e4%bb%a5%e6%8c%89%e7%85%a7%e8%87%aa%e8%ba%ab%e7%9a%84%e5%b8%82%e5%9c%ba%e9%9c%80%e6%b1%82%e5%92%8c%e8%b4%b9%e7%94%a8%e9%a2%84%e7%ae%97%e6%8c%91%e9%80%89%e5%90%84%e7%a7%8d%e5%90%84%e6%a0%b7%e4%bd%9c" type="audio/mpeg"> </audio></div> <p>怎么選擇適合的cod檢測儀呢?</p><p>一、COD檢測儀特點</p><p>為了*好地達到各種各樣必須，cod檢測儀提升了數據儲存、打印出和u ** 插口，便捷傳輸數據到電子計算機上;為了*好地達到戶外應用，設計方案了攜帶式儀器、內嵌大容量鋰電池等;開關電源常見故障維護。一鍵恢復出廠設置和別的作用?？梢园凑兆陨淼氖袌鲂枨蠛唾M用預算挑選各種各樣作用。</p><p><br></p><p>二、COD檢測基本原理。</p><p>你需要明確儀器依據有關設計標準，不論是現階段的有關測試標準是“**測量HJ / T399-2007水體COD迅速消除氣相色譜法”。</p><p>自然，現階段市場上絕大多數的cod檢測儀器全是根據有關的檢測規范。</p><p>三、COD檢測儀的性能參數</p><p>1、多少測量范圍</p><p>有高些和底點不勻稱的高范疇檢測光波長檢測的數COD分析儀器的范疇。因而，用以檢測低水質采樣COD值的不符合國家標準規定，并有一個比較大的偏差和不**。</p><p>2、檢測范圍</p><p>因為多種因素或設計方案目地，儀器的范疇不一樣。依據所需水質采樣的基本情況，可挑選較合適的測量范圍儀表盤。</p><p>3.**度、重復和電子光學可靠性</p><p>這三項性能指標明確儀器的使用性能和數據誤差。即*高的標示偏差的**度的**測量儀器的配準結果的小;相對標準偏差較小儀器的的重現。</p><p>除此之外，儀器中采用的燈源也十分關鍵。cod探測儀選用壽命長冷光源，不錯的儀器一般選用進口的冷光源，自然價錢會稍貴一些，但儀器測量精度高，電子光學可靠性好</p><br /><a href="http://www.1152763.com/">http://www.1152763.com</a></p> </div> <div class="paging_prev" ><span>上一篇：</span><a href="/shop/news/18977705.html">cod檢測儀檢測結果準確嗎？</a></div> <div class="paging_prev"><span>下一篇：</span><a 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