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所有跟帖： 

• Then, how can you tell where the noise is coming from? -花椒- ♀ (0 bytes) () 05/20/2009 postreply 15:14:40

• Use a sethoscope to listen to noise -internuts- ♂ (0 bytes) () 05/20/2009 postreply 18:20:42

• Did LZ use that to determine the source of noise? -花椒- ♀ (158 bytes) () 05/21/2009 postreply 07:59:35

• Water pump noise is a howling noise -xxhhwxc- ♂ (29 bytes) () 05/21/2009 postreply 09:36:19