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莫比烏斯帶
莫比烏斯帶，獨一面一界曲面也，乃拓撲學構造。一八五八五年，德疇人暨天學者莫比烏斯、李斯丁各得之。欲得此帶，當扭紙帶而接兩端，方成。莫比烏斯帶者，實有左右之分，相互對稱。若扭紙帶以順時針，可得右性者，反之可得左性。
參[纂]
- 克萊因瓶
| 聲音動静，具錄於維基共享︰莫比烏斯帶 |
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