A liquid hydrogen has lots of challenges just on the engineering and technological aspects.

液态氢仅在工程和技术方面就有很多挑战。

10. we concentrate here on just a few of its more technological aspects.

我们在这里只关注它的几个技术方面。

And people tend to focus on the kind of narrow technological aspect of all this, but it's part of a far bigger human ecosystem.

人们倾向于关注所有这一切的狭隘技术方面，但它是更大的人类生态系统的一部分。

He has been seeking help from the neighborhood committee from registering online for the nucleic acid tests to navigating the technological aspects associated with the country's virus control measures.

他一直在向居委会寻求帮助，从在线注册核酸测试到搜索与我国病毒控制措施相关的技术方面。