中科微纳普通磨料真密度�?参数-价格-中国粉体罐�/title>

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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><img src="//www.znpla.com/img1/img/daily/2023/08/01/111400_973339_procont.jpg" style="" title="111400_973339_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/08/01/111404_298118_procont.jpg" style="" title="111404_298118_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/08/01/111415_244902_procont.jpg" style="" title="111415_244902_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/08/01/111423_443354_procont.jpg" style="" title="111423_443354_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/08/01/111440_839175_procont.jpg" style="" title="111440_839175_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/08/01/111448_522654_procont.jpg" style="" title="111448_522654_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/08/01/111452_489439_procont.jpg" style="" title="111452_489439_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/08/01/111456_666052_procont.jpg" style="" title="111456_666052_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/08/01/111500_425786_procont.jpg" style="" title="111500_425786_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/08/01/111503_678657_procont.jpg" style="" title="111503_678657_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/08/01/111508_065624_procont.jpg" style="" title="111508_065624_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/08/01/111512_135122_procont.jpg" style="" title="111512_135122_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/08/01/111524_033870_procont.jpg" style="" title="111524_033870_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/08/01/111528_699898_procont.jpg" style="" title="111528_699898_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2024/04/29/135256_881258_procont.jpg" title="135256_881258_procont.jpg" alt="粉体�?jpg"/></p><p>对于同种物质，颗粒大小相同情况下，实心颗粒的堆积密度大于多孔颗粒的堆积密度，因为两者占用的空间体积相同，但是质量不同，如同一个体积相同的铁球和空心铁球一样。多孔颗粒内部由于具有开口孔隙和闭口孔隙，导致其不“密实”。堆积密度经常用于玉米、小麦、大米、大豆、油菜籽等粮食作物的计量，此时又称为容重，即单位体积的质量，主要强调某种物质占用的空间体积。堆积密度与真实密度、表观密度、体积密度不同之处是加入了颗粒间的间隙，该间隙与颗粒的形状、大小等有关、�/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;"> 密度是物质的物理特性之一，不同物质的密度一般不同，反映了不同物质的不同性质，因此，可以根据密度来鉴别物质。密度不随物质形状和空间地理位置的变化而变化，但因物质的状态、温度、压强的改变而改变� </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 class="xgfa_cont"><a href="//www.znpla.com/huayan2021/solution_333.html" target="_blank" class="xgfa_cont_img"><img src="//www.znpla.com/img1/img/daily/2021/11/22/140453_790664_solution_25872.jpg"/></a> <div class="xgfa_cont_rig"><a href="//www.znpla.com/huayan2021/solution_333.html" target="_blank">体积电阻率和表面电阻率有什么不吋�/a> <p class="xgfa_cont_txt">首先*步需要测试体积电阻值和表面电阻值，然后根据试样的尺寸和电极系数，根据计算公式得到体积电阻率和表面电阻率，体积和表面电阻测试时，对电压试样的位置不同，从而能够不同的电阻值在接和未接试样时电容的变化</p><div class="xgfa_cont_time"> <span>石油/化工</span><p>2021-11-22</p></div></div></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="200774" /> <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）">