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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>正拱普通型爆破片的爆破压力主要由爆破片材料的抗拉强度决定。工作时，系统压力作用在爆破片拱壳的凹面，当被保护系统超压时，爆破元件双向被拉伸，发生塑性变形，壁厚减薄�?终破裂，泄放压力，从而起到保护系统的作用、�/p><ol class=" list-paddingleft-2" style="list-style-type: decimal;"><li><p>正拱普通型爆破片（LP（� 与夹持器配合使用，适用于自身可承受背压或无背压、真空的场合。技术特性：</p></li><li><p>适用范围广，可根据不同的爆破压力和泄放口径选用相应的装配结构、�/p></li><li><p>压力加工范围受材料强度限制较大、�/p></li><li><p>适用于气、液两种介质、�/p></li><li><p>适用于高温高压环境、�/p></li><li><p>**工作压力不宜超过*小爆破压力的70%，不适合于压力脉动的场合、�/p></li><li><p>爆破后有碎片、�/p></li><li><p>使用寿命较短，工作时爆破片应力水平较高，易发生蠕变变形和疲劳破坏、�/p></li><li><p>温度效应明显。温度升高爆破压力会明显下降，温度波动，爆破压力随之波动、�/p></li></ol><p><img src="//www.znpla.com/img1/img/daily/2023/08/22/104738_999770_procont.png" width="690" height="764" style="width: 690px; height: 764px;"/></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"}); 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