消聲器
Mufflers and horns of motor vehicles driven within urban areas must meet the requirements of the State. 在城市市區(qū)范圍內行駛的機動車輛的消聲器和喇叭必須符合國家規(guī)定的要求。
Exhaust pipes, mufflers, and tailpipes can also be responsible for various thumps, clangs, and rattles. 排氣管，消聲器，和排氣尾管同樣會發(fā)出各種隆隆聲，鏗鏘聲，和卡嗒聲。
