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            <div   id="jhdhpxxdx"   class="date-wrap"> <span id="jhdhpxxdx"    class="date"> 26 </span> <span id="jhdhpxxdx"    class="month"> 2020-10 </span> </div>
            <div   id="jhdhpxxdx"   class="author"> By <a href="javascript:;"> <a href='mailto:'>���岩声学</a> </a> </div>
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            <h1><i class="fa fa-envira"></i>吸声�p�L�������?/h1><hr style="margin-bottom:30px">
            <p><span style="font-size: 14px;">&nbsp;声�L遇到壁面或其他障���物�Ӟ��一部分声能被反���，一部分声能被壁面或障碍物吸收�{化�ؓ(f��)热能而消耗，�q�有���部分声能透射到另一侧，而某�U�材料或�l�构的吸声能力大���采用称为吸声系数�?/span></p>
<div   id="jhdhpxxdx"   class="para" label-module="para" style="font-size: 14px; overflow-wrap: break-word; color: rgb(51, 51, 51); margin-bottom: 15px; text-indent: 2em; line-height: 24px; zoom: 1; font-family: arial, 宋体, sans-serif;"><span style="font-size: 14px;">声�L入射角度对吸声系数有较大影响�Q�工�E�设计中常用的吸声系数有�Q?/span></div>
<div   id="jhdhpxxdx"   class="para" label-module="para" style="font-size: 14px; overflow-wrap: break-word; color: rgb(51, 51, 51); margin-bottom: 15px; text-indent: 2em; line-height: 24px; zoom: 1; font-family: arial, 宋体, sans-serif;"><span style="font-size: 14px;">1、无规入���吸声系敎ͼ�&alpha;T�Q�（混响室法���量�Q�：(x��)���试较复杂，对��A器设备要求高�Q�且数值往往偏差较大�Q�但比较接近实际情况�Q�在吸声减噪设计中被采用�?/span></div>
<div   id="jhdhpxxdx"   class="para" label-module="para" style="font-size: 14px; overflow-wrap: break-word; color: rgb(51, 51, 51); margin-bottom: 15px; text-indent: 2em; line-height: 24px; zoom: 1; font-family: arial, 宋体, sans-serif;"><span style="font-size: 14px;">2、垂直入���吸声系敎ͼ�&alpha;o�Q�（��L�L���法���量�Q�：(x��)���量�Ҏ(gu��)������ѝ��精���，但与实际情况有较大出入。多用于材料的性质和鉴定，在消声器设计中采用�?/span></div>
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