suitable for drawing of archimedes spirals.

• 1. 基于阿基米德螺旋线的二级颗粒自动分布器 [P] . 中国专利： CN112299057B . 2022.01.21
• 2. 一种基于阿基米德螺旋线的上胶装置及其上胶工艺 [P] . 中国专利： CN110976195B . 2021.03.02
• 3. Instrument for drawing spirals. (Machine-translation by Google Translate, not legally binding) [P] . ES1029225U . 1995-05-01

  机译： 绘制螺旋的仪器。 （通过Google翻译进行机器翻译，没有法律约束力）

• 4. Instrument for drawing spirals. [P] . ES1029225Y . 1995-11-01

  机译： 绘制螺旋的仪器。

• 5. compasses for drawing ellipses, spirals. [P] . MA22685A1 . 1993-07-01

  机译： 绘制椭圆，螺旋的指南针。

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• 9. Versatile Fortran Iv Computer Program for Producing Line Drawings Suitable for Publication Using the CalComp Plotter [R] . Mier, M. G. 1970

• 1. Chinese sunspot drawings and their digitization-(Ⅱ) accuracy analysis for digitized sunspot hand-drawing records of Yunnan Observatories [J] . Yang Peng ,Xiao-Yu Luo ,Shu-Guang Zeng . 天文和天体物理学研究 . 2020,第004期
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• 3. 500MHz阿基米德螺旋线吸波结构 [A] . 肖宇 . 2019