单词:multiple-launch rocket system
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WORDS AND THEIR STORIES - Rocket Scientist By Jerry Watson Broadcast: Sunday, November 28, 2004 Hello, I'm Phil Marily with Words and Their Stories, a program in Special English. You do not need to be
DAVID GREENE, HOST: So in case you were considering traveling to space, the private company SpaceX wants to make space flight a lot cheaper. And to do that, it plans to reuse its rockets over and over again. As NPR's Geoff Brumfiel reports, the first
It was a windy, sunny day. You certainly needed to have a jacket on, as the wind was blowing down from the snow-capped hills. The crowd had gathered in the park, as scheduled. Everyone was excited, and waiting for the teacher to appear. A few passers
This is Xaero - a vertical take-off and landing vehicle being developed by Masten Space Systems. The California start-up hopes the rocket will eventually carry pay-loads for NASA to altitudes of up to 30 kilometres, mainly to collect atmospheric data
MOSCOW, Sept. 21 (Xinhua) -- A Russian Proton-M carrier rocket carrying a military spacecraft blasted off early Wednesday from the Baikonur space center in Kazakhstan, the first launch since a series setbacks of Russian rocket launch in August. Colon
BEIJING, Oct. 18 (Xinhuanet) -- NASA recently unveiled its new rocket design, named Space Launch System (SLS), according to media reports. The rocket will make its first unmanned flight in 2017, and the flight with astronauts aboard won't happen unti