Template:Motd/2012-03-23 (zh-hans)

莫比乌斯带只有一个面和一个边界，该表面不可定向，是一种直纹曲面。

 Template:Motd/2012-03-23

This is the Simplified Chinese translation of the Media of the day description page from 23 March 2012.

Descriptions in other languages:

• Motd/2012-03-23 (en)
• Motd/2012-03-23 (mk)
• Motd/2012-03-23 (zh-hans)