Open AccessMethod Extraction of Lower and Upper Coal Seam in Indian Coal Mining Operations
Author(s) -
R. Giri Prasad
Publication year - 2020
Publication title -
international journal for research in applied science and engineering technology
Language(s) - English
Resource type - Journals
ISSN - 2321-9653
DOI - 10.22214/ijraset.2020.1012
Subject(s) - coal , extraction (chemistry) , coal mining , mining engineering , geology , environmental science , waste management , engineering , chemistry , chromatography