This is the 4939th most frequent Russian word.
комплексами
The Russian word "комплексами" means "complexes" (insecurities or psychological complexes) in the instrumental plural form.
In this sentence, "комплексами" refers to sophisticated sets of equipment used for educational purposes.
Студенты посещают учебные занятия в современных комплексами оборудования.
Students attend classes equipped with modern complexes of equipment.
Here, "комплексами" is used metaphorically to refer to psychological insecurities or apprehensions that one might have.
Мы должны избавиться от наших внутренних комплексами и уверенно выступить.
We must overcome our internal complexes and perform confidently.
This usage refers to physical structures or buildings designed to serve as modern residential apartments.