保加利亚引入VR系统培训F-16战斗机驾驶人员
保加利亚近期在战斗机驾驶人员培训上迈出了创新的一步。该国国防部宣布，Georgi Benkovski Bulgarian Air Force Academy ...
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China unveils Shenzhou-19 crew for space station mission
JIUQUAN, Oct. 29 (Xinhua) -- Chinese astronauts Cai Xuzhe, Song Lingdong and Wang Haoze will carry out the Shenzhou-19 crewed spaceflight mission, and Cai will be the commander, the China Manned Space ...