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<title>自由曲线和曲面的表示方法</title>
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      <a name="#自由曲线和曲面的表示方法">自由曲线和曲面的表示方法</a></b></span></font>
      <ul>
        <li>
          <p align="left"><span style="mso-fareast-font-family: 宋体; mso-hansi-font-family: Times New Roman; layout-flow: vertical"><b><font size="4">Bezier</font></b></span></li>
        <li>
          <p align="left"><span style="mso-fareast-font-family: 宋体; mso-hansi-font-family: Times New Roman; layout-flow: vertical"><b><font size="4" color="#FFFF00">B_Spline</font></b></span></li>
        <li>
          <p align="left"><font size="4"><b>Hermite,Coons</b></font></li>
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    <p align="left"><b><font color="#FFFF00"><a name="#三次周期性B_Spline曲线">3  
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