| • ground coal | |
| कोयला: carbon coal collier brown coal lignite fuel | |
| कोयला संस्तर: coal bed कोयला carbon coal collier | |
| संस्तर: bed calcic horizon diagnostic surface horizons | |
| तली: bottom reverse sole | |
कोयला संस्तर तली अंग्रेज़ी में
[ koyala samstar tali ]
| • ground coal | |
| कोयला: carbon coal collier brown coal lignite fuel | |
| कोयला संस्तर: coal bed कोयला carbon coal collier | |
| संस्तर: bed calcic horizon diagnostic surface horizons | |
| तली: bottom reverse sole | |
