音乐会
发表于 2025-4-1 02:17:45
Curves,ew of the infinite variety of curves that can be imagined. The path of a bird flying through the air, the instantaneous shape of a swinging chain held at its top, the outlines of petals, the forms of arches and suspension bridges-all provide physical examples of curves. We wish to describe such gene
Graphite
发表于 2025-4-1 09:27:06
http://reply.papertrans.cn/33/3203/320272/320272_62.png
挡泥板
发表于 2025-4-1 13:39:54
http://reply.papertrans.cn/33/3203/320272/320272_63.png