据报道,乌克兰已经同意向中国出售RD-170火箭发动机技术,该发动机的推力涵盖190吨到1000吨的范围,号称是有史以来最为经典的火箭发动机。此次引进RD-170技术对于中国火箭发动机的加快发展也是有不可估量的意义。
中国发射第二太空站天宫二号,外国网友怎样看待?
BEIJING: China has launched its second space station in a sign of the growing sophistication of its military-backed program that intends to send a mission to Mars in the coming years.
The Tiangong 2 was carried into space on Thursday night atop a Long March 7 rocket from the Jiuquan Satellite Launch Center on the edge of the Gobi Desert in northern China.
中国发射第二个太空站。9月15日晚上,天宫2号搭乘长征7号火箭,从中国北方戈壁滩的酒泉卫星发射中心升空。
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