中文是时空穿梭。应该是Timeslip （一个词）。非原生词，详细可以参照同名科幻电视剧：
（网上的解释）
Timeslip was a 1970s British children's science-fiction television series about the adventures of two children, Simon Randall and Liz Skinner, who had the ability to travel through a 'time barrier' that led to different historical periods and alternate pasts and futures. Throughout all of these, Commander Traynor (played by Denis Quilley) appears in various guises at different ages. 26 episodes were made by ATV for ITV, covering a series of linked adventures:
http://en.wikipedia.org/wiki/TimeslipOfficial website for Timeslip:
http://www.timeslip.org.uk/
