medium-haul aircraft

例句：

1. 1. The airline's fleet of medium-haul aircraft is expected to grow significantly in the coming years.
   这家航空公司的中程运输机预计在未来几年将显著增长。
2. 2. The medium-haul aircraft has been upgraded with new engines and improved cabin amenities.
   中程运输机已经升级了新的引擎和改善了客舱设施。
3. 3. The medium-haul aircraft was used for international flights between two major cities.
   中程运输机被用于两个主要城市之间的国际航班。