中国在二十世纪六十年代初期开始利用探空火箭、探空气球开展了高层大气探测。

China started to explore the upper atmosphere using rockets and balloons in the early 1960s.

youdao

中国在二十世纪六十年代初期开始利用探空火箭、探空气球开展了高层大气探测。

China started to explore the upper atmosphere using rockets and balloons in the early 1960s.

youdao