| Subject | English | Russian |
| tech. | exploit brimstone deposits by the Frasch process | добывать серу методом Фраша |
| tech. | exploit sulphur deposits by the Frasch process | добывать серу методом Фраша |
| mining. | Frasch process | метод Фраша (a method to extract sulfur from underground deposits MichaelBurov) |