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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> BGI生产的PQ200型环境级<strong>PM2.5细颗粒物采样�?/strong>是符合美国联邦参比方�?FRM：Federal Reference Method)设计的，是FRM中的‘便携式抽样’的颗粒物采样系统。PQ200 型的设计严格按照美国国家环境大气质量标准规范 � 1997�?�?8日出版（U.S. National Ambient Air Quality Standards (NAAQS)� published July 18� 1997.）达�?4小时环境‘精细颗粒物’采样的要求� BGI 同时开发了‘非常精准的旋风式颗粒物粒径采样头’（VSCC）以替代WINS 撞击采样器，它能达到30 天清洗周期。进一步的资料可参见有关的单页介绍。现有的PQ200型采样头可以转换、�/p><p><font>特点９�/font></p><p> ? 单通道设计，安全可靠，便于携带</p><p> ? 人机间友好界面，方便数据采集和下轼�/p><p> ? 内置12-volt DC 电池和充电器 (经过U.L. 认证)</p><p> ? 高级流量控制系统</p><p> ? 内存下载软件</p><p> PQ200环境级精细颗粒物采样�?/p><p></p><p><font>获得五项EPA认证</font></p><p> ? **个通过美国EPA认证的PM2.5细颗粒物采样�?/p><p> ? **个通过美国EPA认证的便携式pm2.5采样� (Designation No. RFPS-0498-116)</p><p> ? **个通过美国EPA等效认证，使用‘非常精准的旋风式颗粒物粒径采样头’（VSCC）的采样� (Designation No. EQPM-0202-142)</p><p> ? PM10采样改良设计也通过美国EPA认可 (Designation No. RFPS-1298-125)</p><p> ? 美国EPA标准方法</p><p> Federal Reference Method (FRM) per 40 CFR Part 50� Appendix L 标准</p><p> PM2.5 (空气动力直径小于2.5微米的颗�? �?6.67 LPM 的流率，经过2个美国EPA标准设计的惯性分离器，采集到47 mm PTFE 采样膜上，在实时采样的同时记录下环境温度和大气压� 微处理器和先进的体积流量控制系统能够保证精确的采样数据连续收集进存储器�?-分钟实际真实温度和气压状况随着采样的体积流率、采样膜的温度、压力同时记录。检测值和显示异常的识别小旗在操作人员用手提电脑时下载采样数据时会被重新覆盖。美国EPA的抽检审核程序使PQ200A version A版成了他们专用的采样器。这款型号的采样器也成了所有官方或个人在希望严格按照EPA规范进行采样时的**、�font>用途：</font></p><p> ? 美国EPA标准的PM2.5采样</p><p> ? 适用于日采样，中间物采样或抽查采栶�/p><p></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="218716" /> <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）">