美国宇航局宣布，将于2013年2月发射“轨道碳观测者2号”(oco - 2)宇宙飞船。

In February 2013, NASA has announced, it will launch its Orbiting Carbon Observatory-2 (OCO-2) spacecraft.

youdao

2009年2月，美国宇航局“轨道碳观测者”发射失败，这艘研究型宇宙飞船在发射升空后很短时间里就坠入海中。

In February 2009, NASA launched the Orbiting Carbon Observatory, a research spacecraft that crashed into the ocean shortly after launch.

youdao

2009年2月，美国宇航局“轨道碳观测者”发射失败，这艘研究型宇宙飞船在发射升空后很短时间里就坠入海中。

In February 2009, NASA launched the Orbiting Carbon Observatory, a research spacecraft that crashed into the ocean shortly after launch.

youdao