谢谢瞎琢磨不敢当。是说三角形斜边。导轨上方用木方和drywall补到与天花板齐，木方下面装导轨。

来源: IEbird 于 2024-04-06 17:55:20 [旧帖] [给我悄悄话] 本文已被阅读：次

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