俄國國防部放的視頻， https://en.wikipedia.org/wiki/File:%D0%A0%D0%B0%D1%81%D1%88%D0%B8%D1%80%D0%B5%D0%BD%D0%BD%D0%BE%D0%B5_%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE_%D0%BE_%D0%BF%D0%B5%D1%80%...