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</div><div class="pct"><style type="text/css">.pcb{margin-right:0}</style><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_486559"> <strong><font color="#eaeaea"><font style="font-size:10.5pt"><a href="http://www.lcgyjg.com/news/newsshow_132.html" target="_blank"><font color="#eaeaea">激光刻章机</font></a></font></font></strong><font color="#eaeaea"><font style="font-size:10.5pt"><font size="3"> </font><strong><a href="http://www.lcgyjg.com/" target="_blank"><font color="#eaeaea">激光雕刻机</font></a></strong></font></font><br /> <font size="3"><font style="font-size:10.5pt"><br /> <font style="font-size:9pt"><a href="http://www.lcgyjg.com/news/newsshow_132.html" target="_blank"><strong><font style="font-size:10pt"><font color="#0000ff"></font></font></strong></a></font><br /> <font color="#0000ff"></font><br /> <font size="3"><font style="font-size:10.5pt"><font style="font-size:10pt">转载自</font><font style="font-size:10pt">:</font><font style="font-size:9pt"><a href="http://www.lcgyjg.com/news/newsshow_132.html" target="_blank"><strong><font style="font-size:10pt"><font color="#0000ff">光岳激光网</font></font></strong></a></font><br /> <font style="font-size:9pt"><a href="http://www.lcgyjg.com/" target="_blank"><strong><font style="font-size:10pt"><font color="#800080">http://www.lcgyjg.com</font></font></strong></a></font><br /> <br /> <font style="font-size:10pt">查看更多精彩</font><font style="font-size:10pt">,</font><font style="font-size:10pt">请登录</font><font style="font-size:10pt">:</font><font style="font-size:9pt"><a href="http://www.lcgyjg.com/news/newsshow_132.html" target="_blank"><strong><font style="font-size:10pt"><font color="#0000ff">光岳激光网</font></font></strong></a></font><br /> </font></font></font></font><font style="font-size:10.5pt"><br /> <br /> <font size="3"> </font></font><font size="3"><font style="font-size:10.5pt"><a href="http://laser.oecr.com" target="_blank" class="relatedlink">激光</a>手术：</font><br /> </font><br /> <font size="3"><font style="font-size:10.5pt">激光能产生高能量﹑聚焦精确的单色光﹐具有一定的穿透力﹐作用于人体组织时能在局部产生高热量。激光手术就是利用激光的这一特点﹐去除或破坏目标组织﹐达到治疗的目的。主要包括激光切割和激光换肤。</font><br /> </font><font style="font-size:10.5pt"><br /> <br /> <font size="3"> </font></font><font size="3"><font style="font-size:10.5pt">激光武器：</font><font style="font-size:10.5pt"><br /> <br /> <br /> </font><strong><font color="#eaeaea"><font style="font-size:10.5pt"><a href="http://www.lcgyjg.com/news/newsshow_132.html" target="_blank"><font color="#eaeaea">激光刻章机</font></a></font></font></strong><font color="#eaeaea"><font style="font-size:10.5pt"> <strong><a href="http://www.lcgyjg.com/" target="_blank"><font color="#eaeaea">激光雕刻机</font></a> </strong></font></font></font><font style="font-size:10.5pt"><br /> <font size="3"> </font></font><font size="3"><font style="font-size:10.5pt">激光武器有它的独特性，令它被广泛应用于防空，反坦克，轰炸机自卫等军事用途</font><font style="font-size:10.5pt">.</font><font style="font-size:10.5pt">激光之所以能成为威力强大的武器，是因为它有三个层次的破坏能力</font><font style="font-size:10.5pt">: </font></font><font style="font-size:10.5pt"><br /> <font size="3"> 1.</font></font><font size="3"><font style="font-size:10.5pt">烧蚀效应</font><br /> <font style="font-size:10.5pt">跟激<a href="http://solar.oecr.com" target="_blank" class="relatedlink">光热</a><a href="http://optics.oecr.com" target="_blank" class="relatedlink">加工</a>原理一样，当高能激光束射到目标时，激光的能量会被目标的<a href="http://material.oecr.com" target="_blank" class="relatedlink">材料</a>吸收，转化为热能</font><font style="font-size:10.5pt">.</font><font style="font-size:10.5pt">这些热能足以令目标部分或完全穿孔，断裂，熔化，蒸发，甚至产生爆炸</font><font style="font-size:10.5pt">. </font></font><font style="font-size:10.5pt"><br /> <font size="3"> 2.</font></font><font size="3"><font style="font-size:10.5pt">激波效应</font><br /> <font style="font-size:10.5pt">如目标材料被气化，目标材料会在极短时间内产生反冲作用，形成压缩波使材料表面层裂碎开，碎片向外飞时造成进一步破坏</font><font style="font-size:10.5pt">. </font></font><font style="font-size:10.5pt"><br /> <font size="3"> 3.</font></font><font size="3"><font style="font-size:10.5pt">辐射效应</font><br /> <font style="font-size:10.5pt">目标材料气化的同时会形成等离子体云，能产生辐射紫外线及</font><font style="font-size:10.5pt">X</font><font style="font-size:10.5pt">光线，使目标内部的<a href="http://electronic.oecr.com" target="_blank" class="relatedlink">电子</a>零件被破坏。</font><br /> </font><font style="font-size:10.5pt"><br /> <br /> <font size="3"> </font></font><font size="3"><font style="font-size:10.5pt">激光能源：</font><font style="font-size:10.5pt"> <br /> </font><strong><font color="#eaeaea"><font style="font-size:10.5pt"><a href="http://www.lcgyjg.com/news/newsshow_132.html" target="_blank"><font color="#eaeaea">激光刻章机</font></a></font></font></strong><font color="#eaeaea"><font style="font-size:10.5pt"> <strong><a href="http://www.lcgyjg.com/" target="_blank"><font color="#eaeaea">激光雕刻机</font></a></strong></font></font></font><font style="font-size:10.5pt"><br /> <font size="3"> </font></font><font size="3"><font style="font-size:10.5pt">激光还可应用于核能发电上。世界上现在建成的核发电站使用的核燃料是铀，</font><br /> <font style="font-size:10.5pt">使用氚核燃料的研究尚未成功。从研究所得，</font><br /> <font style="font-size:10.5pt">氚核燃料比铀核燃料更加</font><font style="font-size:10.5pt"> "</font><font style="font-size:10.5pt">耐烧</font><font style="font-size:10.5pt">"</font><font style="font-size:10.5pt">，</font><font style="font-size:10.5pt"> 1</font><font style="font-size:10.5pt">公斤氚核燃料燃烧产生的能量比铀核燃料高</font><font style="font-size:10.5pt">3</font><font style="font-size:10.5pt">倍多。更有吸引力的是氚核燃料在地球上的贮量大。</font><font style="font-size:10.5pt">1</font><font style="font-size:10.5pt">公斤海水中含有</font><font style="font-size:10.5pt">0.03</font><font style="font-size:10.5pt">克</font><font style="font-size:10.5pt">氚，</font><br /> <font style="font-size:10.5pt">地球上的海洋中就装有</font><font style="font-size:10.5pt">1021 </font><font style="font-size:10.5pt">公斤海水</font><font style="font-size:10.5pt">;</font><font style="font-size:10.5pt">或者说，</font><br /> <font style="font-size:10.5pt">地球的海洋中就贮藏有</font><font style="font-size:10.5pt">1017 </font><font style="font-size:10.5pt">公斤氚，</font><br /> <font style="font-size:10.5pt">把它开发出来做燃料，</font><br /> <font style="font-size:10.5pt">就相当于给我们提供了</font><font style="font-size:10.5pt">10</font><font style="font-size:10.5pt">万亿亿</font><font style="font-size:10.5pt">(1017) </font><font style="font-size:10.5pt">吨煤，</font><br /> <font style="font-size:10.5pt">足够人类用上几亿年，</font><br /> <font style="font-size:10.5pt">既然氚核燃料这么好</font><font style="font-size:10.5pt">.</font><font style="font-size:10.5pt">为甚么现在还不用</font><font style="font-size:10.5pt">? </font><font style="font-size:10.5pt">问题就在于把它点火燃烧不是一件容易做到的事。划一根火柴燃烧的温度就可以把纸片，</font><br /> <font style="font-size:10.5pt">汽油点着火，</font><br /> <font style="font-size:10.5pt">要让这种核燃料着火，</font><br /> <font style="font-size:10.5pt">则需要亿度的高温。激光是目前较有可能达到这个点火温度的技术。</font></font><br /> <font size="3"><font style="font-size:10.5pt"><font style="font-size:10pt">转载自</font><font style="font-size:10pt">:</font><font style="font-size:9pt"><a href="http://www.lcgyjg.com/news/newsshow_132.html" target="_blank"><strong><font style="font-size:10pt"><font color="#0000ff">光岳激光网</font></font></strong></a></font><br /> <font style="font-size:9pt"><a href="http://www.lcgyjg.com/" target="_blank"><strong><font style="font-size:10pt"><font color="#800080">http://www.lcgyjg.com</font></font></strong></a></font><br /> <br /> <font style="font-size:10pt">查看更多精彩</font><font style="font-size:10pt">,</font><font style="font-size:10pt">请登录</font><font style="font-size:10pt">:</font><font style="font-size:9pt"><a href="http://www.lcgyjg.com/news/newsshow_132.html" target="_blank"><strong><font style="font-size:10pt"><font color="#0000ff">光岳激光网</font></font></strong></a></font></font></font></td></tr></table> </div> <div id="comment_486559" class="cm"> </div> <div id="post_rate_div_486559"></div> </div> </div> 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