一、概念引入在空中交適管制工作中,存在一些要求管制员严格把握尺度的问题,如处理不当轻则埋下隐患,重则酿成大祸。考虑到此类问题的重要地位并联系其特点,我们不妨称之为“界限”问题。引入的这个“界限”概念,从哲学意义的角度看,即事物发展规律中由量变到质变的转折点。就好比起飞决 First, the concept of introduction In the air traffic control work, there are some requirements of the controller to strictly grasp the scale of the problem, such as improperly handled, while laying the hidden dangers, but heavy cause disaster. Taking into account the important status of such issues and their characteristics, we might as well call the “boundary” issue. The introduction of this “boundary ” concept, from the philosophical point of view, that is, the law of things from quantitative change to qualitative change turning point. It’s like taking off