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;;INSTRUMENT FOR SIMULTANEOUS DRAWING OF AN ELLIPSE, 'CAP' AND 6TH ORDER CURVE
;;INSTRUMENT FOR SIMULTANEOUS DRAWING OF AN ELLIPSE, 'CAP' AND 6TH ORDER CURVE
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机译:;;同时绘制椭圆,“ CAP”和六阶曲线的工具
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摘要
An instrument for simultaneous drawing of an ellipse, "cap" and 6order curve comprises a rectangular lever connected by apex with a fixed horizontal ruler, along which a crossbeam moves. The instrument additionally comprises a coulisse and a connecting rod, which are connected between them by a T-shaped slider.
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