 |
| |||
| methane; damp; marshgas; methylhydride; hydrogen bicarbide; fire-damp; marsh gas | |||
| pit gas; after damp; fire damp | |||
| firedamp; mine gas | |||
|
grisou : 48 do fraz, 6 tematyki |
| Górnictwo | 2 |
| Hutnictwo | 5 |
| Nauki o życiu | 1 |
| Pospolicie | 2 |
| Technika i technologia | 5 |
| Węgiel | 33 |