Why does this country lag hind others when it comes to astronautical technology.

这个国家为什么再航天技术发展方面落在人家后面。

Why does this country lag behind others when it comes to astronautical technology?

这个国家为什么再航天技术发展方面落在人家后面?。

Measures usually taken in the astronautical engineering are to install baffles in the propellant fuel container.

常用的增加液体晃动阻尼的措施是在推进剂贮箱内安装防晃板。

The news wasannounced at the same meeting of the International Astronautical Congress where Elon Musk revealed his plans for colonizing Mars.

这个新闻在国际宇航大会上得到发布，而就在同一个会议上，马斯克公布了其殖民火星的计划。

The aeronautical and astronautical characteristic discipline is qualified of Doctoral Degree granting and provided with a Post-Doctoral Research Center.

该学科是具有航天特色的学科，具有博士学位授予权并设有博士后流动站。