China successfully developed and launched its first man-made satellite, DFH-1 on April 24, 1970, and became the fifth country in the world independently developing and launching man-made satellite. China has developed...China successfully developed and launched its first man-made satellite, DFH-1 on April 24, 1970, and became the fifth country in the world independently developing and launching man-made satellite. China has developed and launched more than 70 different types of satellites with over 90% flight success rate. Now China has developed 6 satellite series, namely展开更多
文摘China successfully developed and launched its first man-made satellite, DFH-1 on April 24, 1970, and became the fifth country in the world independently developing and launching man-made satellite. China has developed and launched more than 70 different types of satellites with over 90% flight success rate. Now China has developed 6 satellite series, namely
