請問，剛開車時排氣管發出的聲音像破罐子那樣，等溫度正常以後，排氣管聲音也恢複正常了。是怎麽回事？

來源: zharry 於 2016-08-21 08:32:58 [舊帖] [給我悄悄話] 本文已被閱讀：次

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