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
- ]. m+ F: F1 u; z* x. y$ W0 B9 t2 A6 ]Do you mean o the other end of the hood vent?

4 s# F3 h* N+ |& b# }3 |9 ]  qyes， may have something fell down on the other end of the hood vent

ceramistpalace

edmontondown 发表于 2013-1-2 23:56
yes， may have something fell down on the other end of the hood vent

; H$ O0 U% q/ x5 b3 K4 o: ]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