The type of engines was called the jet engine because it blows a large jet of hot air backwards at high speed !此類發(fā)動(dòng)機(jī)被稱為噴氣發(fā)動(dòng)機(jī),因?yàn)樗诟咚僦孪蚝髧姵鰪?qiáng)大的熱氣(向后吹出強(qiáng)大的黑色熱氣)?后半部分正確釋義應(yīng)為什么,謝各知識(shí)人士幫忙解答.

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它向后噴出強(qiáng)大的高速熱氣流