This is the 8642nd most frequent Russian word.
отечественную
"Отечественную" means "homeland" or "patriotic" depending on context.
In this sentence, 'отечественную' refers to 'literature' that is 'native' or originates from one's own country, emphasizing its national belonging.
Мы изучали отечественную литературу в университете.
We studied native literature at the university.
Here, 'отечественную' describes 'промышленность' as domestic, indicating its association with the local or national context.
Отечественную промышленность необходимо развивать.
Domestic industry needs to be developed.
In this case, 'отечественную' pertains to 'продукцию,' highlighting the idea of supporting locally manufactured goods rather than imported ones.