This is the 5657th most frequent Russian word.
преемника
Successor.
In this sentence, 'преемника' is used to mean 'successor,' referring to a piece of equipment that continues or complements the work of its predecessor.
Новое установочное оборудование требует преемника для завершения всех функций.
The new setup equipment requires a successor to perform all its functions.
The word 'преемника' here refers to a successor in a leadership or positional context, denoting the next person to fulfill the leader's role.
Этот лидер был широко уважаем и заботился о подготовке своего преемника.
This leader was widely respected and took care to prepare their successor.
Here, 'преемника' is used metaphorically to describe a newer version of a device or technology as a successor to the current model.