ground navigation aid造句

例句與造句

1. " with the implementation of the ifr procedures , pilots can utilise signals from ground navigation aids and fly along the designated ifr routes even when the visibility precludes visual flights . the regularity of the helicopter service between hong kong and macau is therefore improved , " the spokesman said
   他說：儀表飛行規則程序獲準使用后，即使能見度低至不可能靠目視飛行，飛行員仍可根據地面導航儀器所發出的信息，以設定的儀表飛行規則路線飛行，令來往港澳之間的直升機服務更有規律。
2. It's difficult to find ground navigation aid in a sentence. 用ground navigation aid造句挺難的