等效百万吨当量 děngxiàobǎiwàndūndāngliàng equivalent megatonnage Origin Definitions Defs Strokes Stroke Words Sentences Sents 等效 děngxiào equivalent having the same effect; equal in efficacy百万吨 百萬噸 bǎiwàndūn megaton megaton; one million tons当量 當量 dāngliàng yield The energy released by an explosion, typically expressed as the mass of TNT that would produce an equivalent amount of energy