你知道宇航员的选拔程序吗？

Do you know anything about the selection procedure for astronauts?

而那些能顺利通过重重选拔程序的海归们,都是对当地情况十分熟悉的.

Overseas returnees who pass selection procedures must be familiar with local conditions, Hong said.

谢里夫大学同样有极为严格的选拔程序。

Sharif also has an extremely rigorous selection process.