| 释义 |
Noun: roentgen rúntjun- A unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
- R, röntgen
Noun: Roentgen rúntjun- German physicist who discovered x-rays and developed roentgenography (1845-1923)
- Wilhelm Konrad Roentgen, Röntgen, Wilhelm Konrad Röntgen
Derived forms: roentgens, Roentgens Type of: physicist, radioactivity unit Encyclopedia: Roentgen Roentgen, Wilhelm Conrad |