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<P><a href="http://www.hzxjhs.com/jiaoshi/jiaoyanzuweb/wuli/tok2/outclas/ebook/resource/gz/gzwl/wlbl/wls00040/2996_sr.htm" target="_blank" >http://www.hzxjhs.com/jiaoshi/jiaoyanzuweb/wuli/tok2/outclas/ebook/resource/gz/gzwl/wlbl/wls00040/2996_sr.htm</A></P><P>你上这个网站看看,有孔径角和视场的概念</P><P>F/#中的#代表的数据就是相对孔径的倒数</P><P>我建议你多看看应用光学,基础要扎实一点。并且可以google搜索一下。</P>
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