| Subject | English | Spanish |
| coal. | opencast development | apertura a cielo abierto |
| coal. | opencast development | preparación |
| environ. | opencast mining Extracting metal ores and minerals that lie near the surface by removing the overlying material and breaking and loading the ore | explotación a cielo abierto |
| mining., industr. | opencast mining | explotación de minas al aire libre |
| mining., industr. | opencast mining | minería a cielo abierto |
| mining., industr. | opencast mining | explotación a cielo abierto |
| agric., chem. | opencast mining | laboreo a cielo abierto |