... beam compasses 梁规 ; 杠规 ; 长臂分规 elliptic compasses 椭圆规 Ruler and compasses 尺规作图 ...
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construction with ruler and compasses 直尺圆规作图法
drawing with compasses and ruler 规尺作图
ruler and compasses
尺子和圆规
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The rotary ruler can be used as simple compasses, can be used to draw arcs and circles according to demands, and can be used to define positions and directions of two articles simultaneously.
旋 转尺能当作一个简易圆规使用，能根据需要画弧、画圆，同时能 确定两物体的位置与方向。
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