Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
재료학은 물질의 성질과 구조를 연구하는 학문입니다.jaeryohak-eun muljil-ui seongjil-gwa gujo-reul yeonguhaneun hakmun-imnida.Materials science is the study of the properties and structures of materials.