单词:chip dividing groove
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EXPLORATIONS - How Robert Goddard Helped Lead America Into Space By Voice of America Broadcast: Wednesday, April 20, 2005 (MUSIC) VOICE ONE: This is Steve Ember. VOICE TWO: And this is Shirley Griffit
Mining asteroids 小行星采矿 Going platinum 小行星采矿淘铂去 Mining metals from asteroids seems a bonkers idea. But could it work? 小行星采矿这想法听似疯狂,但行得通吗? CAN reality trump art? That was the question hove
Space Shuttle Endeavour lifts-off from the Kennedy Space Center at Cape Canaveral, Florida, 08 Feb 2010 The space shuttle Endeavour blasted off from NASA's Kennedy Space Center in the southeastern U.S. state of Florida before dawn, bound for the Inte
Hi there, I'm Ricky with the BBC World News for Children. It's Monday the 24th of May. Coming up: South Korea freezes trade with North Boy becomes youngest person to climb Everest and Inter Milan are crowned European champions But first - South Korea
Science and technology. 科技。 Mining asteroids. 小行星采矿。 Going platinum. 小行星采矿淘铂去。 Mining metals from asteroids seems a bonkers idea. But could it work? 小行星采矿这想法听似疯狂,但行得通吗? CAN rea