| • coal dust layering | |
| कोयला: carbon coal collier brown coal lignite fuel | |
| कोयला धूलि: coal dust | |
| धूलि: dust filth dust counter dust loading | |
| परतन: layering | |
कोयला धूलि परतन अंग्रेज़ी में
[ koyala dhuli paratan ]
| • coal dust layering | |
| कोयला: carbon coal collier brown coal lignite fuel | |
| कोयला धूलि: coal dust | |
| धूलि: dust filth dust counter dust loading | |
| परतन: layering | |
