一些业内人士认为齿轮传动窝扇发动机最终可能降低燃油消耗达20- 25%。

Some in the industry think geared turbofans could eventually reduce fuel consumption by 20-25%.

youdao

一些业内人士认为齿轮传动窝扇发动机最终可能降低燃油消耗达20- 25%。

Some in the industry think geared turbofans could eventually reduce fuel consumption by 20-25%.

youdao