| NOMBRE | substance | grisú | a mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air |
|---|
| Sentido | A mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air. | |
|---|---|---|
| General | gas | A fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely |
| Inglés | firedamp | |
| Catalán | grisú | |
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