Title: Kungnae tʻan / pʻyepʻŭllasŭtʻik honhap sŏnghyŏng yŏllyo ŭi yŏl punhae saengsŏng kasŭ chŏgyong kisul kaebal yŏnʼgu =
Subjects: Pyrolysis, Coal liquefaction, Coal gasification, Gas chromatography, Anthracite coal
Places: Korea (South)