释义 |
UVB noun[ U ] uk /ˌjuːviːˈbiː/ us /ˌjuːviːˈbiː/ radiation from the sun with fairly short wavelengths. UVB is short for "ultraviolet B".中波紫外线(ultraviolet B的缩写) SMART Vocabulary: related words and phrases Physics: radiation & radioactivity alpha particle background radiation decay electromagnetic radiation gamma radiation gamma ray irradiation luminosity non-ionizing non-irradiated nonradioactive radioactivity radioisotope sievert spectrometer spectrometric unirradiated UPF UVA weak force |