超声光栅�?参数-价格-中国粉体罐�/title>

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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>WCG-1垊�strong>超声光栅�?/strong>是天津市拓普仪器有限公司与天津大学应用物理系共同研发的仪器。该仪器采用光具座形式，其优点是：（1）WCG-1垊�strong>超声光栅�?/strong>具有光具座直线性好的特点。（2）光学仪器的调试，光学实验大部分都在光具座上进行，这是因为除光具座具有直线性好的特点外，还具有方便调整，方便组合多种实验等优点� </p><p> 超声波在液体中调制了液体的密度，使其形成“超声光栅”，当光束穿过“超声光栅时”，就像穿过普通光栅那样产生衍射现象。利用这种方法可以准确地测量声在液体中的速度� </p><p> 超声光栅实验已被列入大学基本物理实验� </p><p> 超声波在液体中调制了液体的密度，使其形成“超声光栅”，当光束穿过“超声光栅时”，就像穿过普通光栅那样产生衍射现象。利用这种方法可以准确地测量声在液体中的速度� </p><p> 超声光栅实验已被列入大学基本物理实验、�/p></p><p><strong>技术参数：</strong></p><p><p>输入电压�?20V 50HZ </p><p> 频率范围�?0MHZ��1MHZ </p><p> 频率显示�?位LED显示 </p><p> 衍射条纹：≥3� </p><p> 测微目镜测量范围�?mm </p><p> 测量精度�?.01mm </p><p> 望远镜系统物镜焦距f=150mm</p></p><p><strong>主要特点９�/strong></p><p><p>WCG-1垊�strong>超声光栅�?/strong>是天津市拓普仪器有限公司与天津大学应用物理系共同研发的仪器。该仪器采用光具座形式，其优点是：（1）WCG-1垊�strong>超声光栅�?/strong>具有光具座直线性好的特点。（2）光学仪器的调试，光学实验大部分都在光具座上进行，这是因为除光具座具有直线性好的特点外，还具有方便调整，方便组合多种实验等优点、�/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="217427" /> <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）">