取代DSP的努力美国“空军-1号”腾空而起。4架最新式的战机整齐地围绕在“空军-1”号的左右。第一夫人肯定很欣赏护航的4架战机。但在高空还有两架预警机在巡视。在更高的太空,还有50多颗导弹预警卫星、电子侦察卫星、照相侦察卫星,以及导航卫星、气象卫星为第一家庭保驾护航。 Efforts to replace DSP United States “Air Force -1 ” soared into space. 4 latest fighters neatly around the “Air Force -1” number around. The first lady must have enjoyed the escort of four fighters. However, there are two AWACS aircraft at high altitude. In higher space, there are more than 50 missile early warning satellites, electronic reconnaissance satellites, photographic reconnaissance satellites, as well as navigation satellites and meteorological satellites to escort the first family.