The surface targets that will encounter enmey air attack are numerous in area defense.As-certainning the covering point is one of the battle matters which need to be solved firstly.

• 摘要区域防空作战中，可能遭敌空袭的地面目标众多，在防空资源有限的条件下确定防空掩护重点是首要解决的作战问题之一。