low level radiation; low dose irradiation; low dose exposure
lower, short, humble
テイ / ひく.い
line, track
セン / すじ
quantity, measure, weight, amount, consider, estimate, surmise
リョウ / はか.る
incur, cover, veil, brood over, shelter, wear, put on, be exposed (film), receiving
ヒ / こうむ.る
bleach, refine, expose, air
バク / さら.す