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}else{ $(".fixdbox").css({"display":"none"}); } $(".fixdbox_main_left div").css({"color":"#4F5862","border-bottom-color":"transparent"}); if($(this).scrollTop()>=_wsj){ $(".fixdbox_main_left div").eq(6).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_gsdt){ $(".fixdbox_main_left div").eq(5).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_yhpl){ $(".fixdbox_main_left div").eq(4).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_xgzl){ $(".fixdbox_main_left div").eq(3).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_xgfa){ $(".fixdbox_main_left div").eq(2).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_cxd){ $(".fixdbox_main_left div").eq(1).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_cpjj){ $(".fixdbox_main_left div").eq(0).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); } }); function showliuyan(me, showtype){ if(showtype==0){ //$("#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><strong><span>一、产品介绌�/span></strong></p><p><span>1、产品原琅�/span></p><p><span>电导率，物理学概念，指在介质中该量与电场强度之积等于传导电流密度，也可以称为导电率。对于各向同性介质，电导率是标量；对于各向异性介质，电导率是张量。生态学中，电导率是以数字表示的溶液传导电流的能力。单位以西门子每米（</span><span>S/m）表示、�/span></p><p><span>本仪器测试电导的方法，是通过由振荡器产生的交流电压加在电极上（加交流电压的目的是为了避免引起电极的极化），电导池内产生电流，此电流与被测溶液的电导率成正比，经电�?/span><span>-电压变换、放大、检波，变换为直流电压，通过温度补偿等，*后经A/D转换器转换成数字信号，通过微电脑显示。整个过程均由微电脑控制和处理、�/span></p><p><span>2、产品用逓�/span></p><p><span>该仪器广泛用于科研、教学、工业、农业等许多学科和领域、�/span></p><p><span><strong>二、产品参�?/strong></span></p><p><span>1�?/span><span>电导率测量范围：</span><span> (0�?99.9)��s/cm ;(200�?999)��s/cm ;(2.00�?9.99)ms/cm �?20.0�?99.9)ms/cm：�/span></p><p><span>2�?/span><strong><span>分辨玆�/span><span>: 0.1/1��s/cm �?.01/0.1ms/cm</span></strong><strong><span>：�/span></strong><strong></strong><span>3�?/span><span>准确�?/span><span>:电计:��1.0%FS;配套:��1.5%FS：�/span></p><p><span>4�?/span><strong><span>温度补偿</span><span>:10�?0℃自动补偿或手动补偿</span></strong><strong><span>：�/span></strong><strong></strong><span>5�?/span><span>基本配置</span><span>:DJS-1E(铂黑)电极; 018温度电极�?408��s/cm 电导率标准校准座; 7号DC1.5V电池4节、�/span></p><p><span><strong>三、产品特炸�/strong></span></p><p><span>1、高可靠性、高稳定性、�/span></p><p><span>2、先进的电路结构、�/span></p><p><span>3�?/span><strong><span>输出测量讯号</span></strong><span>、�/span></p><p><span>4、高清晰度数码显示、�/span></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; font-size: 14px; margin: 10px 0 0; line-height: 26px;"> 暂无数据� </p> </div>  <div class="xgfa"> <div class="xgfa_tit"> <div> <span></span>相关方案 </div> </div> <div class="xgfa_box" style="display: block;"><div style="padding:10px;">暂无相关方案、�/div> </div> </div> <script> $(function(){ // 切换 $(".xgfa_tit_ul li").hover(function(){ $(".xgfa_tit_ul li").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); var _index = $(this).index(); $(".xgfa_box").css("display","none"); $(".xgfa_box").eq(_index).css("display","block"); }); }); </script>  <div class="xgzl"> <div class="cxd_tit"><span></span>相关资料</div> <div class="xgzl_box"><div style="padding:10px;">暂无数据、�/div> </div> </div>  <div class="yhpl"> <div class="cxd_tit"><span></span>用户评论</div> <form id="FormComments" action="" method="post" onsubmit="return false"> <input name="SaveProComments" id="SaveProComments" type="hidden" value="yes" /> <input name="ProductID" id="ProductID" type="hidden" value="245394" /> <input name="ProQuality" id="ProQuality" type="hidden" value="10" /> <input name="ProService" id="ProService" type="hidden" value="10" /> <input name="ProUsability" id="ProUsability" type="hidden" value="10" /> <input name="ProCostperformance" id="ProCostperformance" type="hidden" value="10" /> <div class="yhpl_pf"> <div> <p>产品质量</p> <div><span id="Quality" class="stars star10"></span><span id="Quality_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>售后服务</p> <div><span id="Service" class="stars star10"></span><span id="Service_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>易用�?/p> <div><span id="Usability" class="stars star10"></span><span id="Usability_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>性价毓�/p> <div><span id="Costperformance" class="stars star10"></span><span id="Costperformance_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> </div> <div class="yhpl_pftit">评论内容</div> <textarea name="Comments" id="ProComments" onfocus="checklogin();" placeholder="分享产品使用经验/采购评价（不超过500字）">