exposure to ultraviolet紫外線暴露[化学]ultraviolet exposure: ultraviolet exposure紫外線暴露[化学]excessive exposure to ultraviolet light: 紫外線{しがいせん}の過度{かど}の照射{しょうしゃ}exposure to intense ultraviolet irradiation: 強い紫外線照射{しがいせん しょうしゃ}