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| 文档标题： | CCglasses |
| 发布时间： | 2014-04-28 00:00:00 |
| 文档简介： | Challenge Eyes to Hear With: Easy to Manufacture CC Glasses http://grabcad.com/challenges/eyes-to-hear-with-easy-to-manufacture-cc-glasses - Inexpensive - Easy to build - Cheap Materials. (Plastic, |