It incorporates active radar with an inertial reference unit and micro-computer system, which makes the missile less dependent upon the fire-control system of the aircraft.
它把主动雷达和一个被动参考单元以及微电脑系统结合在一起，可使得导弹更少的依靠飞机上的发射控制系统。
2
The missile was in active service from 1987 until 2007, and deployed with the 54th Strategic missile Division near the town of Teikovo, about 150 miles (240 km) northeast of Moscow.
It recently built at least two Jin-class submarines, the first regularly active ones in the fleet with ballistic missile capabilities, and two more are under construction.