保ほ健けん物ぶつ理り学がく

noun

health physics

Technical field concerned with radiation protection and the safe use of radiation and radioactive materials.

• 保ほ健けん物ぶつ理り学がくは放ほう射しゃ線せん防ぼう護ごのための学がく問もん分ぶん野やです