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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"> <strong>仪器简介：</strong></p><p><p> 721系列可见分光光度计，以全新的设计理念，博采众家之长。充满现代化气息的外形设计，**的数据处理和控制功能为该仪器鲜明的特色。广泛应用于厂矿、卫生、学校、环保及科研实验室等。我们的目标为广大用户提供高品质的分析仪器、�/p><p> 选配附件９�/p><p> 电子式恒温比色池� ��8-��22mm试管架（单池（�/p><p> 水循环式恒温比色池架 AC-230型智能温�?进样控制�?/p><p> 5-100mm光程手动多联比色池架 AC-220型智能式自动进样控制�?/p><p> 通光宽度�?-4mm微量比色池架（单池） AC-210型智能温度控制器</p><p> 100-200mm超微量比色池架（单池� 各种规格的比色池</p><p> 我公司同类产品：</p><p> WFZ-26A双光束紫外可见分光光度计</p><p> 721可见分光光度讠�/p><p> 721B可见分光光度讠�/p><p> 721P可见分光光度讠�/p><p> 722可见分光光度讠�/p><p> 722B可见分光光度讠�/p><p> 722P可见分光光度讠�/p><p> 723可见分光光度讠�/p><p> 723B可见分光光度讠�/p><p> 723E可见分光光度讠�/p><p> 752紫外可见分光光度讠�/p><p> 752E紫外可见分光光度讠�/p><p> 754紫外可见分光光度讠�/p><p> 754E紫外可见分光光度讠�/p><p> 756紫外可见分光光度讠�/p><p> 756PC紫外可见分光光度讠�/p><p> UV75-18紫外可见分光光度讠�/p><p> UV75-18G紫外可见分光光度讠�/p></p><p><strong>技术参数：</strong></p><p><p> 产品型号 721 721B 721P</p><p> 波长范围 340-1000nm 340-1000nm 340-1000nm</p><p> 波长精度 ��2nm ��2nm ��2nm</p><p> 波长重复� 1nm 1nm 1nm</p><p> 光谱带宽 4nm 4nm 4nm</p><p> 光度精度 �?#177;0.5%T �?#177;0.5%T �?#177;0.5%T</p><p> 光度重复� 0.5%T 0.5%T 0.5%T</p><p> 杂散� �?#177;0.5%T �?#177;0.3%T �?#177;0.3%T</p><p> 显示方式 31/2LCD 31/2LCD 31/2LCD</p><p> 操作方式 手动波长 手动波长 手动波长</p><p> 操作软件 � � 酌�/p><p> 备注 � 100mm比色皿架 微型针式打印朹�/p></p><p><strong>主要特点９�/strong></p><p><p> 采用新型的光路设计和高质量的光栅，具有杂散光低，单色性好的特炸�/p><p> 单片机的采用使操作更为简易，�?%T�?00%T仅为轻轻一按、�/p><p> 四种测量模式，T、A、C、斜率法，使操作更加简便、�/p><p> 31/2LCD液晶显示读数方便，大样品室可使功能扩展、�/p><p> 721B可配100mm比色皿架，更适用于水厂、电厂进行含量分枏�/p><p> 721P可配装打印机，测量数据可更方便打印保存、�/p><p> 光源6V10W进口2000小时长寿命钨卤素灯、�/p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; 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