航天员在太空中执行任务。

Hángtiān yuán zài tàikōng zhōng zhíxíng rènwu.

Astronauts perform tasks in space.

航天探测器成功着陆火星。

Hángtiān tàncèqì chénggōng zhuólù huǒxīng.

The aerospace probe successfully landed on Mars.

航天工程对科学研究有重要影响。

Hángtiān gōngchéng duì kēxué yánjiū yǒu zhòngyào yǐngxiǎng.

Aerospace engineering has a significant impact on scientific research.