Ай бұрынCan China catch up with the US in aerospace technology? Where are the gaps? Рет қаралды 10,72152hz Lab 1 1 中国能否赶上美国航天技术水平?差距在哪里?一本正经地讲一些没用的知识不要忘了订阅我们的频道✧✧✧✧✧✧✧✧✧✧✧✧✧✧✧✧✧✧✧✧✧#科技 #科学 #科普Жүктеу
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