This is the 15803rd most frequent Russian word.
продемонстрировано
"Displayed" or "demonstrated."
The word 'продемонстрировано' here signifies that an example or a procedure was shown or explained during a lesson.
На уроке было продемонстрировано, как использовать новый инструмент.
In the lesson, it was demonstrated how to use the new tool.
'Продемонстрировано' is used here to mean that the functionality or features of some equipment were shown in a specific setting.
В лаборатории было продемонстрировано новое оборудование.
The new equipment was demonstrated in the laboratory.
Here 'продемонстрирован' describes that a presentation, likely in the form of a report or talk, was shown at a conference.