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} }); function showliuyan(me, showtype){ if(showtype==0){ //$("#Content").val($("#Content").attr('placeholder')); Content= document.getElementById('PopMsgFrom').Content.getAttribute('placeholder'); document.getElementById('PopMsgFrom').Content.value=Content; } if(showtype==1){ // $("#Content").val($(me).text()); alert($(me).text()); document.getElementById('PopMsgFrom').Content.value=$(me).text(); } $(".fxp").css("display","flex"); } function close_popwin(){ $(".fxp").css("display","none"); // 关闭虚拟电话后的留言� $(".dhxj").css("display","none"); $(".dhxjbox").css("display", "none"); $(".dhxjbox2").css("display", "none"); return false; } </script>  <div class="cpjs"> <div class="cpjs_tab"> <div class="js_cpjj" style="border-bottom: 3px solid #1479d7; color: #1479d7;">产品介绍</div> <div class="js_cxd">创新炸�/div> <div class="js_xgfa">相关方案</div> <div class="js_xgzl">相关资料</div> <div class="js_yhpl">用户评论</div> <div class="js_gsdt">公司动�?/div> <div class="js_wsj">问商宵�/div> </div> <script> $(function(){ // 切换 $(".cpjs_tab a").click(function(){ $(".cpjs_tab a").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <p><span><strong><span>一、产品介绌�/span></strong></span></p><p><span>应用微电脑光电子比色检测原理取代传统的目视比色法。消除了人为误差，因此测量分辨率大大提高。空气中的分子态氧溶解在水中称为溶解氧，水中的溶解氧的含量与空气中氧的分压、水的温度都有密切关系。在自然情况下，空气中的含氧量变动不大，故水温是主要的因素，水温愈低，水中溶解氧的含量愈高。溶解于水中的分子态氧称为溶解氧，通常记作DO，用每升水里氧气的毫克数表示。水中溶解氧的多少是衡量水体自净能力的一个指标。RJY-1A型溶解氧测试仪可用来检测水样中溶解氧浓度，以便控制水的溶解氧达到规定的水质标准。符合国标GB/T5750-2006生活饮用水卫生标准、�/span></p><p><span><strong>二、产品参�?/strong></span></p><p><span>1、测量范围：0-12mg/L</span></p><p><span>2�?小示值：0.01mg/L</span></p><p><span>3、重复性：�?%</span></p><p><span>4、精度：��5%FS��1个字</span></p><p><span>5、充电器：AC 220V 50Hz</span></p><p><span><strong>三、产品特炸�/strong></span></p><p><span>1、微电脑，轻触式键盘，LCD液晶数字清晰显示，使用方便、�/span></p><p><span>2、采用分光光度的光电比色原理� 应用方便试剂，水样放入试剂反应后几分钟即可读数，数字显示溶解氧的值，试剂包装为方便滴水瓶、�/span></p><p><span>3、本公司特有�?*技术LED光源自动控制电路，光源稳定，解决了开机须预热问题。其光源寿命长达20年，开机时无需预热，可直接使用、�/span></p><p><span>4、主机内可配置大功率电池，可用于野外现场定量测量，充�?小时可连续使�?小时，即充即用、�/span></p><p><span>5、仪器内存储有全量程范围内的标定曲线 ，具有断电保护，标定数据不会丢失。可自动调零�?点自动校正，数据有非线性处理及数据平滑功能＋�/span><strong><span>仪表*小读数为0.01mg/L</span></strong><span>、�/span></p><p><span>6、融合多项自主设�?*成果，技术先进，</span><span><strong>符合国标GB/T5750-2006生活饮用水卫生标准、�/strong></span></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; 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