nasa是什么意思啊?
的有关信息介绍如下:nasa一般指美国航空和航天局。
例句:
Journalist Sarah Scoles reports that NASA currently tracks about 24,000 objects in space, and in 2016 the Air Force had to issue 3,995,874 warnings to satellite owners alerting them to a potential nearby threat from another satellite or bit of debris.
记者萨拉·斯克勒斯报道称,美国宇航局目前跟踪了约24,000个太空物体,2016年,空军向卫星所有者发出了3,995,874次警告,提醒他们附近可能有另一颗卫星或碎片的威胁。