K'NEX Ellipsograph bug

作者:Michael Borcherds

K'NEX Ellipsograph

Image from http://tinas-sliderules.me.uk/Slide%20Rules/KNexEllipsograph.JPG" target="_blank" rel="noreferrer">http://tinas-sliderules.me.uk/Slide%20Rules/KNexEllipsograph.JPG

新资源

发现资源

发现主题