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}else{ $(".fixdbox").css({"display":"none"}); } $(".fixdbox_main_left div").css({"color":"#4F5862","border-bottom-color":"transparent"}); if($(this).scrollTop()>=_wsj){ $(".fixdbox_main_left div").eq(6).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_gsdt){ $(".fixdbox_main_left div").eq(5).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_yhpl){ $(".fixdbox_main_left div").eq(4).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_xgzl){ $(".fixdbox_main_left div").eq(3).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_xgfa){ $(".fixdbox_main_left div").eq(2).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_cxd){ $(".fixdbox_main_left div").eq(1).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }else if($(this).scrollTop()>=_cpjj){ $(".fixdbox_main_left div").eq(0).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); } }); function showliuyan(me, showtype){ if(showtype==0){ //$("#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"> <h3 class="tb-main-title" data-title="巨良JLZJHP-16气动调节阀单座高温法兰薄膜调节阀铸钢不锈钢切�? data-spm-anchor-id="2013.1.iteminfo.i0.473e9de1YwDmh5" style="margin: 0px; padding: 0px; font-size: 16px; min-height: 21px; line-height: 21px; color: rgb(60, 60, 60); font-family: tahoma, arial, " hiragino="" sans="" white-space:="" background-color:="">江苏巨良JLZJHP-16气动调节阀单座高温法兰薄膜调节阀铸钢不锈钢切断阀</h3><p><img src="//www.znpla.com/img1/img/daily/2022/09/24/154114_573742_procont.jpg" style="" title="154114_573742_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2022/09/24/154123_339240_procont.jpg" style="" title="154123_339240_procont.jpg"/></p><p><br/></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;"> (1)阀芯形状结枃�br /> <br /> 主要根据所选择的流量特性和不平衡力等因素考虑、�br /> <br /> (2)耐磨损�?br /> <br /> 当流体介质是含有高浓度磨损性颗粒的悬浮液时，阀的内部材料要坚硬、�br /> <br /> (3)耐腐蚀�?br /> <br /> 由于介质具有腐蚀性，尽量选择结构简单阀门、�br /> <br /> (4)介质的温度、压劚�br /> <br /> 当介质的温度、压力高且变化大时，应选用阀芯和阀座的材料受温度、压力变化小的阀门，当温度≥250℃时应加散热器、�br /> <br /> (5)防止闪蒸和空匕�br /> <br /> 闪蒸和空化只产生在液体介质。在实际生产过程中，闪蒸和空化会形成振动和噪声，缩短阀门的使用寿命，因此在选择阀门时应防止阀门产生闪蒸和空化、�br /> <br /> 调节阀执行机构<br /> <br /> 为了使调节阀正常工作，配用的执行机构要能产生足够的输出力 </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"}); 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