空中加油是提高飞机航程、活动半径的重要方法。

Air refueling is an effective method to increase the cruise range and active radius of a fighter.

youdao

协和式飞机航程有限，而且对其经由陆地上空发出轰鸣声有严格的禁令，因此它只能主要往返于大西洋两岸。

The Concorde's limited range, and rules that forbade it from setting off sonic booms over land meant it mostly stuck to its transAtlantic back and forth.

youdao

飞机的返回航程被推迟了。

The return flight of the aircraft was delayed.

《柯林斯英汉双解大词典》