字面看是炉子回风口处与炉子底部相连的大盒子，炉子背面室内会有个近地面回风窗口通大盒子。

来源: IEbird 于 2022-05-01 18:55:44 [旧帖] [给我悄悄话] 本文已被阅读：次

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