常見例句雙語例句Regarded engine , exhaust pipe and silencer as a exhaust system of exhausting, the mathematical model for calculation the insertion loss in a muffler is presented.把發(fā)動機(jī)、排氣歧管和消聲器作為一個(gè)排氣系統(tǒng)整體考慮，建立了消聲器插入損失的數(shù)學(xué)模型。 返回 muffler silencer