• 2021-04-14
    词汇与结构
    In most such aircraft, any engine failure results in a rejected takeoff as a matter of course, since even ______ the end of the runway is preferable to lifting off with insufficient power to maintain flight.
  • overrunning

    内容

    • 0

      In the course of ________________, some birds have lost the power of flight.

    • 1

      词汇与结构 Before takeoff, the engines, particularly piston engines, are routinely run up at high power to check for ________ problems.

    • 2

      All the flight instruments operate on air taken from outside of the aircraft during flight.

    • 3

      The most important factor in engine performance is the actual power output at the end of the crankshaft available for doing workThis is known as ().

    • 4

      词汇与结构 The aircraft take advantage of aerodynamic _________ to travel through the air by means of primary and secondary flight control surfaces which are operated by flight controls in the cockpit.