| Subject | English | Spanish |
| gen. | flare stacks for use in oil refineries | tubos flameantes industria del petróleo |
| gen. | flare stacks for use in the oil industry | tubos flameantes industria del petróleo |
| chem. | Maintain air gap between stacks/pallets. | Dejar una separación entre los bloques/los palés de carga. |