三角形具有稳定性按这思路做床腿你那个锯用起来很危险换把锯吧

来源: hhhh 于 2016-03-22 15:30:22 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.

三角形具有稳定性 按这思路做床腿 你那个锯用起来很危险 换把锯吧