This is the 10027th most frequent Korean word.
공장들의
"Factories'" (plural possessive form of "factory").
Here, '공장들의' modifies '작업 환경' to specify that the working environments belong to those factories. '의' denotes possession.
나는 공장들의 작업 환경에 대해 조사하고 있습니다.
I am researching the working environments of factories.
In this sentence, '공장들의' indicates possession, specifying that the locations belong to the factories.
공장들의 위치는 도시 외곽에 주로 위치하고 있습니다.
The locations of factories are mainly located outside the city's outskirts.
The phrase '공장들의 생산량' conveys that the production volume is specific to the factories in question.