这些新型飞机比旧型号更省油。

These new ___airplanes are more fuel-efficient than the older models.

这家航空公司最近购买了一批新型飞机来更新机队。

The airline recently purchased a fleet of new ___airplanes to upgrade their service.

这些飞机配备了先进的雷达系统用于作战任务。

These ___airplanes are equipped with advanced radar systems for combat missions.