This is the 114th most frequent Russian word.
российские
"Российские" means "Russian" (relating to Russia as a country or state).
In this sentence, "российские" qualifies "ученые" indicating that the scientists are from Russia, typically used for a formal or professional description of nationality.
Российские ученые сделали важное открытие.
Russian scientists made an important discovery.
Here, "российские" describes "фильмы" (movies), specifying that these movies are made in Russia or by Russians, emphasizing national origin.
Российские фильмы часто показывают уникальную культуру.
Russian movies often showcase unique culture.
In this example, "российские" refers to "технологии" (technologies), denoting that the technologies are associated with Russia, often implying innovation and national development context.