 |
| English | Russian |
| radiation symbol | символ радиации (The international radiation symbol (also known as trefoil) first appeared in 1946, at the University of California, Berkeley Radiation Laboratory. wiki (Hazard symbol) Alexander Demidov) |
|
| English | Russian |
| radiation symbol | символ радиации (The international radiation symbol (also known as trefoil) first appeared in 1946, at the University of California, Berkeley Radiation Laboratory. wiki (Hazard symbol) Alexander Demidov) |