我国航天事业的发展尽管一度历经磨难和质疑,艰难前行,但一代代航天人以百折不挠的精神执着向前,使得我国航天事业蓬勃发展星空总给人以无限遐想。古有嫦娥奔月,之后在14世纪末期,明朝的士大夫万户将祖先的飞天梦点亮了实干的火焰,他把47个自制的火箭绑在椅子上,自己坐在椅子上,双手举着大风筝。他最先开始设想利用火箭的推力,飞上天空,然后利用风筝平稳着陆。不幸火箭爆炸,万户也为此献出了宝贵的生命。但他的行为却在 Although the development of China’s space undertaking once went through hardships and challenges, it has been a difficult journey forward. However, generation after generation of space people persevered with indomitable spirit and made the rejuvenation of the space industry in our country’s aerospace cause with endless reverie. The ancient Chang’e flew to the moon. Later, in the late 14th century, thousands of Ming dynasty scholar-warriors lit their hard-working flame with their ancestral flying dreams. He tied 47 homemade rockets to chairs and placed himself on a chair and both hands Big kite. He first started to envisage using the thrust of a rocket to fly to the sky and then make a smooth landing with a kite. Unfortunately, the rocket explosion, 000 households have also contributed a valuable life. But his behavior is there