求翻译：我从环球军事上了解到，目前美国拥有一种叫超空泡的钻地炸弹，它能钻入地下60米再爆炸，还有RQ170无人隐形侦查机，以及正在研发的X-47B太空武器是什么意思？

I learned from the global military, the U.S. has called the penetrating supercavitating bombs, it can penetrate into the ground 60 meters before the explosion, there RQ170 unmanned stealth reconnaissance aircraft, and is developing the X-47B space weapons

I am from global military, that, at present, the United States possesses a called ultra-air bubbles, the earth-penetrating bombs it can penetrate into the ground 60 meters before exploding, there are 170 RQ unmanned Stealth reconnaissance aircraft, as well as the ongoing research and development of

I understood from round the world the military, US has one kind to be called the ultra vacuole at present to drill the bomb, it can drill into the underground 60 meters to explode again, but also has the RQ170 nobody stealth reconnaissance aircraft, as well as is researching and developing X-47B out

I learned from the global military, current United States have called supercavitation Earth-penetrating bombs, it can drill into the ground 60 meters and then bang, there is RQ170 no hidden investigation and X-47B of research and development of space weapons

I know, U.S.A. has a kind of drill ground bomb which calls the ultra vacuole at present from military affairs around the world, it can bore and enter 60 meters of underground to explode, there are RQ170 nobody's stealthy scoutplanes, and X-47B space weapon that is researching and developing