窗户上直接有对外空气交流，落地窗的话可以看见上面的进空气口下面有出气口，现在高级的还有空气过滤的装置

来源: Gbdjw 于 2017-05-16 09:39:15 [旧帖] [给我悄悄话] 本文已被阅读：次

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