Vehicle（英语：Hypersonic Technology Demonstrator Vehicle） SABRE (rocket engine)（英语：SABRE (rocket engine)） 开拓航空航天动力装置的新领域——评介《超音速燃烧与超音速燃烧冲压发动机》 （页面存档备份，存于互联网档案馆） ...

Once you've seen the falls from below and behind, consider seeing them from above at the Skylon Tower. Dominating the Ontario skyline, this 775-foot high tower offers particularly breathtaking ...