植物气孔�?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><strong>植物气孔讠�/strong>用逓�/p><p>　　<strong>植物气孔讠�/strong>用来定量测量各种因素对叶片气孔行为的影响，可方便、重复、准确地计算出气孔阻抗、气孔导度和蒸腾速率，还可测得空气温湿度，叶面温度，光合有效辐射。因此植物蒸腾速率的测量对于农业科研、教学、园艺研究、林业研究等具有重大意义、�/p><p></p><p><strong>植物气孔讠�/strong>测量原理</p><p>　　原理：根据循环扩散原理，由植物叶片表面湿度的变化来进行测量计算、�/p><p>　　测试指标</p><p>　　叶片温度</p><p>　　光合有效辐射(PAR)</p><p>　　空气温度</p><p>　　空气湿度</p><p>　　蒸腾速率</p><p>　　气孔导度</p><p>　　气孔阻抗</p><p>　　技术指栆�/p><p>　　空气温度９�/p><p>　　瑞士进口高精度数字温度传感器＋�/p><p>　　测量范围�?20-80℃，分辨率：0.1℃，误差��0.2ℂ�/p><p>　　样品室温度范围：-5�?55ℂ�/p><p>　　湿度９�/p><p>　　RH测量范围0�?5%;误差� 1%;</p><p>　　光合有效辐射(PAR)９�/p><p>　　带有修正滤光片的硅光电池，测量范围：0-3000��molm �?� ，精�?5��molm �?科�/p><p>　　流量：微型流量计，流量在0-1.5L范围内任意设定， 气流稳定。误 差：1%，在0.2�?L/ min范围冄���0.2%</p><p>　　叶室尺寸：标准尺�?5��20mm，其它可根据客户需求定偙�/p><p>　　工作环境：操作温�?-50ℂ�操作湿度�?0% - 850%</p><p>　　电源系统：每次充电可连续工作20小时，充电时间约6小时、�/p><p>　　数据存储：内�?6G，可扩展�?2G</p><p>　　数据传输：USB连接电脑可直接导出数据、�/p><p>　　显示�?.5"TFT真彩液晶屏彩色显示器，分辨率 800��480，强光下清晰可见</p><p>　　重量：主�?.6 kg;</p><p>　　</p><center></center> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; 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