在进入机场区域内飞行时，应该依照进离场程序飞行，并不得低于仪表进近图中规定的最低IFR高度，在应急状态下，不得低于所处位置的( )。When flying within the airport area, it is necessary to fly as per the arrival/departure procedures and not lower than the minimum IFR altitude prescribed in the instrument approach chart, and in emergency, not lower than ( ) at its location;