This is the 6658th most frequent Korean word.
원전에
"원전에" means "in/at the nuclear power plant" or "in the original text," depending on context.
Here, '원전에' refers to 'nuclear power plants', indicating the subject of investment.
한국은 원전에 많은 투자를 하고 있습니다.
South Korea is investing significantly in nuclear power plants.
Here, '원전에' refers to 'the original work', showing its usage in the context of literature or art as the basis of a derivative work.
저는 그 영화의 원전에 대해 읽었습니다.
I read about the original work of that movie.
In this example, '원전에' again pertains to 'nuclear power plants', detailing the topic of the research.