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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"> <table cellpadding="0" cellspacing="0" width="239" height="19"><colgroup><col width="319" style="width:239.25pt;"/></colgroup><tbody><tr height="19" style="height:14.25pt;" class="firstRow"><td class="et2" height="14" width="239" x:str="" style="">管道增压罗茨鼓风朹�/td></tr></tbody></table><p>型号：OSR200</p><p>口径：DN200</p><p>流量�?7.65-59.20m3/min：�/p><p>升压�?.8-98kpa：�/p><p>功率�?5-90kw：�/p><p>转速：810-1480r/min：�/p><p>产品介绍９�/p><p>靠活塞往复运动使泵腔（气缸）的工作容积周期性地变化来抽气的真空泵，又称活塞真空泵。往复真空泵的结构与往复活塞压缩机相似。工作时，吸气管接被抽真空容器，排气管直通大气。往复真空泵抽气量较大，抽气速率范围为每小时180-2160立方米，极限压力约为2700帕。往复真空泵可用于真空蒸馏、真空浓缩、真空结晶、真空过滤、真空干燥和混凝土真空作业等。在泵的吸气口处若安装冷凝器，可抽除含水蒸汽的气体；若安装过滤器，则可抽除含尘气体、�/p><p>� 单级双作用真空泵、�/p><p>� 立式结构，消除了横波劣性震动，噪音低、�/p><p>� WLW为无油型，满足清洁真空需求、�/p><p>� 立式结构，受力均匀，汽缸、活塞、连杆、十字头等部件磨损小、�/p><p>� 特殊设计的冷却结构，面积加大，气体的压缩过程近似于等温、�/p><p>� 特殊设计的活塞和轴向安装于端盖的不锈钢气阀，高效耐用、�/p><p>� 功耗降低，冷却水耗量低，节能高效、�/p><p>� 皮带传动。四氟密封、�/p><p>(济南一六机械制造有限公�?</p><p><br/></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; 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