One more NC-123B was employed being a radio relay plane over the Ho Chi Minh path, with equipment to study the signals from different sensors on the bottom intended to get enemy truck activity.B??c 2: M? ph?n “Ti?n ích” trong “Cài ??t Iphone” ho?c Ipad, tùy theo thi?t b? b?n s? d?ng.K?t qu? x? s? mi?n B?c trên m?ng c?ng s? ???c c?p nh?t