单词：isometric holohedral hexakisoctahedral class
单词：isometric holohedral hexakisoctahedral class 相关文章
LESSoN EIGHT TEXT Telecommunication via Satellite At the beginning of the twentieth century, there were four powerful means of transmitting and receiving information over long distances: print, photog
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MOSCOW, April 22 (Xinhua) -- The Russian Space Forces has re-established contact with a military satellite, Geo-IK-2, which went missing in February, local media reported Friday. According to a spokesman from the Defense Ministry(国防部) , Interfa
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BEIJING, May 23 (Xinhua) -- The Ziyuan III satellite, launched on Jan. 9 to produce high-resolution imagery for civilian use, has sent back visual data covering 45.79 million square km of the globe as of May 18, according to an announcement on Wednes
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TOKYO, Sept. 23 (Xinhua) -- Japan's H-2A rocket carrying a new information gathering satellite was launched at the Tanegashima Space Center in Kagoshima Prefecture on Friday, local media reported. Japan has already introduced three information-gather
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Three new-generation BeiDou navigation satellites were launched last year, and 98 percent of the components were Chinese made. BeiDou Navigation Satellite System has been in operation since 2000, making China the third country with an autonomous nav-
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JOHANNESBURG, March 8 (Xinhua) -- In order to combat piracy and to improve maritime safety, South African authorities（当局官方） have begun using a sophisticated（复杂的精细的 ） navigation satellite system, it was announced on Tuesday
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