释义 |
UVA noun[ U ] uk /ˌjuːviːˈeɪ/ us /ˌjuːviːˈeɪ/ radiation from the sun with fairly long wavelengths. UVA is short for "ultraviolet A".长波紫外线(ultraviolet A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 UVB weak force |