1. 登基典礼；就任主教的仪式
The enthronement of a king, queen, emperor, or bishop is a ceremony in which they officially take on their role.

e.g. ...the enthronement of their new emperor.
他们新皇帝的登基典礼

noun

1. the ceremony of installing a new monarch

Synonym: coronationenthronizationenthronisationinvestiture