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

yes， may have something fell down on the other end of the hood vent

ceramistpalace

edmontondown 发表于 2013-1-2 23:56
4 X; v2 S+ `1 Z) D, |: j$ R7 }yes， may have something fell down on the other end of the hood vent

1 M) P* d- a* m2 I6 l3 \2 TAt 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