| • workable seam | |
| खननीय: mining | |
| कोयला: carbon coal collier brown coal lignite fuel | |
| कोयला संस्तर: coal bed कोयला carbon coal collier | |
| संस्तर: bed calcic horizon diagnostic surface horizons | |
खननीय कोयला संस्तर अंग्रेज़ी में
[ khananiya koyala samstar ]
| • workable seam | |
| खननीय: mining | |
| कोयला: carbon coal collier brown coal lignite fuel | |
| कोयला संस्तर: coal bed कोयला carbon coal collier | |
| संस्तर: bed calcic horizon diagnostic surface horizons | |
