In an effort to design cheap and plentiful solar panels,
researchers have been inspired by the process of photosynthesis, in which plants
use naturally occuring chemicals to manufacture food from sunlight.
여기서 in which은 관계부사인가요?? in which의 구조에 대해 자세히 설명해주실분 계시나요..





3



in이라는 전치사는 장소 방법 등에 이용..