exposure to ultraviolet light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}on exposure to ultraviolet light: 紫外線{しがいせん}に当たって[さらされて]ultraviolet light exposure: ultraviolet light exposure紫外線暴露[化学]