燃气发动机是所有热机中最完美的,因为它结合了蒸汽机和内燃机的优点。
"Without the past, there is no future."
The arithmetic of algebraic groups is a key to understanding the Langlands conjectures.
I’m not a guy that’s going to let my love for the moment down.
The best investments are those that create long-term value, not just short-term gains.