No. 4,877 in Russian
исследовательских
"Research" or "investigative" (adjective form).
In a sentence
Этот университет известен своими исследовательскими проектами.
This university is known for its research projects.
The word "исследовательскими" here is in its instrumental plural form, agreeing with "проектами", indicating projects concerned with research.
Мы изучали материалы на тему исследовательских работ.
We studied materials on the topic of research works.
The term "исследовательских" is in its genitive plural form, modifying "работ" to describe the type of works.
Департамент поддерживает проведение исследовательских мероприятий.
The department supports the execution of research activities.
"Исследовательских" here is an adjective in the genitive plural form, specifying the type of activities, i.e., those related to research.
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