请问新房子什么东西on the top of kitchen hood fan 会掉下来的？

edmontondown

听到是洋铁皮的一半在悬空的状态下，每隔2分钟风一吹就咣当一声响，请问新房子是什么东西on the top of kitchen hood fan 会掉下来的？

ceramistpalace

Do you mean o the other end of the hood vent?

edmontondown

ceramistpalace 发表于 2013-1-2 23:26
; |! X0 f. W! W( V* Y8 R1 TDo you mean o the other end of the hood vent?

2 L! i' q1 x6 K. e% v2 k( ]. e) ?  `yes， may have something fell down on the other end of the hood vent

ceramistpalace

edmontondown 发表于 2013-1-2 23:56
2 A7 t6 y6 D7 i, A& |' H6 }yes， may have something fell down on the other end of the hood vent

At the other end(outside) of the vent duct, there is usually a metal cover for the opening, it can swing up and down and if it is a windy day, it will be blown swinging, thus making a kind of banging noise.

Edmontonsky

楼上高人正解！
楼主不妨到室外勘察一番，自会明了