attenuationn.
英 ə,tenjʊ'eɪʃən | 美 ə,tɛnjʊ'eʃən
中文n. [物] 衰减；变薄；稀释
词根词源
attenuation (n.)early 15c., of persons, "emaciation;" of diet, "reduction," from Latin attenuationem (nominative attenuatio) "a lessening," noun of action from past participle stem of attenuare (see attenuate).
关键词