Superiority refers to one thing being better than another.
The technical superiority of laser discs over tape is well established.
光盘相对磁带在技术上的优越性是确定无疑的。
Superiority is a kind of behaviour when someone acts as if they are better, more important, or more intelligent than other people.
a false sense of his superiority over mere journalists.
他在记者面前才有的虚假的优越感。
If one side in a war or conflict has superiority, it has an advantage over its enemy, for example because it has more soldiers or better equipment.
We have air superiority.
我们有空中优势。