1.涡轮风扇
2.涡轮通风器
1.Research in areas such as new materials and improved blade design will provide incremental improvements to high-bypass turbofans.
对于新材料以及先进的叶片设计领域的研究将为高涵道比涡轮发动机提供更多改良。
2.Some in the industry think geared turbofans could eventually reduce fuel consumption by 20-25%.
有业内人士认为齿轮传动涡扇发动机最终可以减少20%到25%的燃油消耗量。
3.Air National Guard and USAF Reserve aircraft received 18, 000-pound-thrust Pratt & Whitney turbofans taken from scrapped late model 707s.
空中国民警卫队和空军预备役的飞机则接收了来自最新型号波音707客机上使用的18,000磅推力的普拉特·惠特尼涡轮风扇发动机。