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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> 阿贝折光仪是Ernst Abbe 1869年发明的，用来测定折射率。利用光线在棱镜和样品的边界处发生全反射的原理。棱镜的折射率决定了测量的上限，因此它的折射率一般比样品大得多。要测量固体的折光率，接触液必不可少。阿贝折光仪主要特点是操作简单，需要样品量少。测量固体或粘稠样品像测量液体一样简单，颜色和污斑不影响测量结果。此外还可以检测可溶性固形物生物含量。样品的折射率取决于测量时使用光源的波长，因此我们用LED589nm为棱镜照明，其使用寿命＞100000h。折光率还受温度影响，当温度升高时，折射率下�?因此我们照明棱镜和测量棱镜都与恒温器相连。阿贝折光仪检修容易，利用校准板校准，我们的校准板符合ASTMD1218标准、�/p><p>应用领域</p><p>应用在下列行业中混合比的测量，质量和数量的检查：</p><p>造纸</p><p>饮料</p><p>食品</p><p>糖和甜料行业</p><p>纺织品工丙�/p><p>制药行业</p><p>化工</p><p>石化行业</p><p>金属加工行业</p><p>废水处理</p><table cellspacing="0" cellpadding="2" border="1" bordercolor="#f2f2f2" width="100%"><tbody><tr><td>测量范围</td><td>1.3000 � 1.7000 nD 0-95 %Brix</td></tr><tr><td>精确�?/td><td>�� 0.0002 nD �� 0.1 %Brix</td></tr><tr><td>刻度</td><td>0.0005 nD 0.25 %Brix</td></tr><tr><td>温度讠�/td><td>数字温度计：-40�?20 ��C</td></tr><tr><td>光源</td><td>LED 光源</td></tr><tr><td>显示屎�/td><td>通过刻度窗和目镜读数</td></tr><tr><td>电源</td><td>110V �?20V，可转换</td></tr><tr><td>尺寸</td><td>10 X 27 X 19 cm</td></tr><tr><td>重量</td><td>2.5kg</td></tr><tr><td>特点</td><td>刻度可调，棱镜温度可调，恒温器与棱镜相连</td></tr></tbody></table> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; 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