And finally, the air bases along the coast of the mainland are always tightly guarded for fear that pilots will defect to freedom. As a result of all these considerations, flying time is reduced to as little as possible. In the control room at the end of the taxiway, flight officers take turns to keep a round-the-clock vigil.
四、在沿海的空軍基地，為了防止中共空軍起義飛向台灣，所以也儘量減少他們飛行的機會。