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style="text-indent: 21pt;">(</span><span style="text-indent: 21pt; font-family: 宋体;">如椭圆、</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋体;">抛物线、</span><span style="text-indent: 21pt;"> </span><span style="text-indent: 21pt; font-family: 宋体;">渐开线等</span><span lang="EN-US" style="text-indent: 21pt;"> )</span><span style="text-indent: 21pt; font-family: 宋体;">。宏程序的编制现已成为编程人员的必备技能。但在教学过程中</span><span lang="EN-US" style="text-indent: 21pt;"> ,</span><span style="text-indent: 21pt; font-family: 宋体;">学生编制宏程序极易出错</span><span lang="EN-US" style="text-indent: 21pt;"> ,</span><span style="text-indent: 21pt; font-family: 宋体;">下面介绍一下</span><span lang="EN-US" style="text-indent: 21pt;"> FNUC</span><span style="text-indent: 21pt; font-family: 宋体;">数控车床椭圆宏程序的编制中几点注意</span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">事项。</span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span lang="EN-US">1</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman""> </span> <span style="font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">严格遵守编程格式</span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">宏程序的编制有其严格的编程格式</span><span lang="EN-US"> ,</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">不符合格式要求的语句</span><span lang="EN-US"> ,</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">均被系统认为是非法语句</span><span lang="EN-US"> ,</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">而不予执行。而且这类错误查找起来也较困难。如</span><span lang="EN-US">: X[ - #3 ]</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">写成</span><span lang="EN-US"> X - #3, GOT O</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">写成</span><span lang="EN-US"> G O T O, #4= S QRT[ABS[ 1600 - 43 #33 #3 ] ]</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">写成</span><span lang="EN-US"> #4 = SQRT[ABS[ 1600 -43 #33 #3 ]</span><span style="font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">。类似的错误看起来不严重</span><span lang="EN-US"> ,</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">但将导致程序无法运行</span><span lang="EN-US"> ,</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">特别是在比赛、</span> <span style="font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">考试等紧张的环境下更不易查错。所以在宏程序的编制过程中</span><span lang="EN-US"> ,</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">应认真学习格式要求</span><span lang="EN-US"> ,</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">严格遵守编程格式。</span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span lang="EN-US">2</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman""> </span> <span style="font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">理清编程思路</span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">宏程序编制与计算机编程类似</span><span lang="EN-US"> ,</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">理清编程思路非常重要。可以先画出流程图</span><span lang="EN-US"> ,</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">再按照流程图编制程序。下面分别是用</span><span lang="EN-US"> IF</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">……</span><span lang="EN-US">G OT O</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman"">……</span> <span style="font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">和</span><span lang="EN-US"> WH I LE</span><span style="font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">……</span><span lang="EN-US">DOm</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">循环车削椭圆的流程图。</span></p> <p class="MsoNormal" style="text-indent:21.0pt;mso-char-indent-count:2.0"><span lang="EN-US"><img src="/upload/images/201407/14052602992694.jpg" alt="" /><br /> <!--[endif]--></span></p> <p class="MsoNormal" align="left" style="text-indent: 21pt;"><span lang="EN-US">3</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt"> </span> <span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">合理设定条件式</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt; font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">避免过切</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-bidi-font-family: 宋体;mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" align="left" style="text-indent: 21pt;"><span style="mso-bidi-font-size: 10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">粗车的目的是去除多余的余量</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">并且为半精加工</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt; font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">精加工预留合适的余量。用</span><span lang="EN-US"> G90</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">方式粗车椭圆特别注意不要过切。由以上流程图可以看出</span><span lang="EN-US"> IF</span><span style="mso-bidi-font-size:10.5pt; font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">…</span><span lang="EN-US">GOT O</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">…语句流程是先车削后判断</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt; font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">如条件设置不合理将有可能导致过切。例如</span><span lang="EN-US">:</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">劳二版《</span><span lang="EN-US"><a href="http://www.bethel-cnc.com/" target="_blank"><span lang="EN-US" style="font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman"">数控机床</span></a></span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">编程与操作</span><span lang="EN-US"> (</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋体;mso-font-kerning:0pt">数控车床分册</span><span lang="EN-US"> ) </span><span style="mso-bidi-font-size:10.5pt; font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">》</span><span lang="EN-US"> 102</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">页编程示例</span><span lang="EN-US"> , #1</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-bidi-font-family:宋体;mso-font-kerning:0pt">自变量的初始值为</span><span lang="EN-US"> 25,</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">条件式为</span><span lang="EN-US"> [ #1GT0 ] , #1</span><span style="mso-bidi-font-size:10.5pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-bidi-font-family:宋体;mso-font-kerning:0pt">自变量的递减步长为</span><span lang="EN-US"> 4</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">。当</span><span lang="EN-US">#1</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋体;mso-font-kerning:0pt">自变量递减为</span><span lang="EN-US"> 1</span><span style="mso-bidi-font-size:10.5pt; font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">时</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">条件判断为</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">”</span> <span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">是“。</span><span lang="EN-US">#1</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋体;mso-font-kerning:0pt">自变量继续递减</span><span lang="EN-US"> , #1 = #1 - 4,</span><span style="mso-bidi-font-size: 10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">此时</span><span lang="EN-US"> #1</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">的值为</span><span lang="EN-US"> - 3</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体; mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"; mso-bidi-font-family:宋体;mso-font-kerning:0pt">。按此值以及根据此值计算出的因变量车削时</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">必将产生过切</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋体;mso-font-kerning:0pt">实际车削至点</span><span lang="EN-US"> ( - 5 . 5, - 0 .089)</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">。将条件式改为</span><span lang="EN-US"> [ #1GT1 ]</span><span style="mso-bidi-font-size:10.5pt; font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">即可解决问题。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-bidi-font-family: 宋体;mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" align="left" style="text-indent: 21pt;"><span lang="EN-US">4</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt"> </span> <span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">精加工椭圆终点的处理</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt; font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" align="left" style="text-indent: 21pt;"><span style="mso-bidi-font-size: 10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">精加工的目的为保证加工的最终精度。宏程序加工椭圆的方法其实质为利用椭圆表达式</span><span lang="EN-US"> (</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">标准方程或极坐标方程</span><span lang="EN-US"> )</span><span style="mso-bidi-font-size:10.5pt; font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">计算出椭圆曲线上一定数量的中间点坐标</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">然后用直线插补功能逐点加工。类似于手工的拟合处理。此种方法不仅会产生拟合误差</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">而且由于自变量递变总有一定的步长以及系统的计算误差</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt; font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">精加工的终点往往不能精确地到达目标点</span><span lang="EN-US"> (X Z</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">坐标值与理论值存在误差</span><span lang="EN-US"> )</span><span style="mso-bidi-font-size:10.5pt; font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">。如椭圆终点接一段圆柱面时</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">椭圆加工宏程序结束后直接</span><span lang="EN-US"> Z</span><span style="mso-bidi-font-size:10.5pt; font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">向车削圆柱面</span><span lang="EN-US"> (G01Z - ?) ,</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">有可能影响圆柱面的尺寸精度。应在宏程序结束后加一程序段</span><span lang="EN-US">: G01 XA Z B (A B</span><span style="mso-bidi-font-size: 10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">为椭圆终点坐标值</span><span lang="EN-US"> ) ,</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">然后再</span><span lang="EN-US"> Z</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋体;mso-font-kerning:0pt">向车削圆柱面。如此更加有利于保证加工精度。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-bidi-font-family:宋体; mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" align="left" style="text-indent: 21pt;"><span style="mso-bidi-font-size: 10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">总而言之</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">宏程序编程虽然较灵活</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt; font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">但是总有规律可循。理清编程思路</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">注意编程要点</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman";mso-bidi-font-family: 宋体;mso-font-kerning:0pt">多练习</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt; font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning:0pt">多观察</span><span lang="EN-US"> ,</span><span style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman";mso-bidi-font-family:宋体;mso-font-kerning: 0pt">必将提高编程水平。</span><span lang="EN-US" style="mso-bidi-font-size:10.5pt; font-family:宋体;mso-bidi-font-family:宋体;mso-font-kerning:0pt"><o:p></o:p></span></p> <p class="MsoNormal" align="center" style="margin-top:4.5pt;margin-right:0cm; margin-bottom:7.5pt;margin-left:0cm;text-align:center;line-height:13.5pt; mso-pagination:widow-orphan;mso-outline-level:1"><b><span style="mso-bidi-font-size: 10.5pt;font-family:宋体;mso-bidi-font-family:宋体;color:#666666;mso-font-kerning: 0pt">本文由<span lang="EN-US"> </span></span></b><b><u><span style="mso-bidi-font-size: 10.5pt;font-family:宋体;mso-bidi-font-family:宋体;color:#333333;mso-font-kerning: 0pt">伯特利数控</span></u></b><b><span style="mso-bidi-font-size:10.5pt;font-family: 宋体;mso-bidi-font-family:宋体;color:#666666;mso-font-kerning:0pt">文章<span lang="EN-US"> 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