 |
| English | Russian |
| approval for underground use | допуск к применению в шахтах |
| processed using natural salts | галургический (from the Greek hals – salt and ergo – work,  academic.ru tfennell) |
|
| English | Russian |
| approval for underground use | допуск к применению в шахтах |
| processed using natural salts | галургический (from the Greek hals – salt and ergo – work, academic.ru tfennell) |