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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"> <h2 style="TEXT-ALIGN: left; LINE-HEIGHT: 25px; WIDOWS: 1; TEXT-TRANSFORM: none; FONT-VARIANT: normal; FONT-STYLE: normal; TEXT-INDENT: 0px; LETTER-SPACING: normal; FONT-FAMILY: microsoft yahei; WHITE-SPACE: normal; COLOR: rgb(80,80,80); WORD-SPACING: 0px; -webkit-text-stroke-width: 0px">概况及原琅�/h2><p style="TEXT-ALIGN: left; WIDOWS: 1; TEXT-TRANSFORM: none; TEXT-INDENT: 0px; LETTER-SPACING: normal; FONT: 14px/25px microsoft yahei; WHITE-SPACE: normal; COLOR: rgb(80,80,80); WORD-SPACING: 0px; TEXT-DECORATION: none; font-stretch: normal; -webkit-text-stroke-width: 0px">本型号三叶罗茨鼓风机/真空泵是我公司通过引进吸收欧美同类产品先进技术而自主创新开发的新一代高效节能型产品、�/p><p>通过不同的管道连接方式和结构布置，本产品可作为鼓风机和真空泵满足各类不同工况条件的使用、�/p><p>ERG型罗茨鼓风机和ERP型罗茨真空泵均是一种旋转式容积机械泵。二个三叶型转子与机体保持一定的间隙，通过一对同步反向旋转高精度齿轮使二个转子在机体内旋转时互相不接触并保持一定间隙。下图为风机的结构原理图，从图Ⅰ至Ⅳ为转子在机体内旋转并完成一次吸、排气的过程。二个三叶转子在机体内旋转一周均完成三次吸气、排气、�/p><p>采用三叶转子比传统二�?字型转子的吸排气效率�?*排压、温升、振动、噪声等主要性能指标都具有明显的技术优势、�/p><p style="TEXT-ALIGN: left; 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