谁来唱我写的歌 发表于 2025-12-14 09:39

有谁知道这是什么上面的，有啥作用

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疯狂神仙 发表于 2025-12-14 09:48

老辈子包暖气的时候留的百叶孔

社会哲学赵教授 发表于 2025-12-14 09:56

看不清楚，是暖气的还是通风管道上的

wsffsw 发表于 2025-12-14 10:18

可能是空调   外面百合叶 楼体外遮挡 通风 遮挡
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