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Instrument for conversion of conchoid of cross-shaped curve into octic curve
Instrument for conversion of conchoid of cross-shaped curve into octic curve
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机译：用于将十字形曲线的贝壳状体转换为卵形曲线的仪器
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摘要
An instrument for conversion of conchoid of cross-shaped curve into an octic curve contains a rotary rule, a rectangular lever, a fixed guide connected by hinges and sliders. The instrument is equipped with a vertical fixed guide and the second rectangular lever connected by a hinged dyad of sliders.
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