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perforation 音标拼音: [p ,ɚfɚ'eʃən] n. 穿孔,贯穿,贯通 穿孔,贯穿,贯通 perforation打孔率
perforation折页线;打孔眼线 Pperforation打孔 perforation n 1: a line of small holes for tearing at a particular place 2: a hole made in something; " a perforation of the eardrum" 3: the act of punching a hole ( especially a row of holes as for ease of separation) Perforation \ Per` fo* ra" tion\, n. [ Cf. F. perforation.] 1. The act of perforating, or of boring or piercing through. -- Bacon. [ 1913 Webster] 2. A hole made by boring or piercing; an aperture. " Slender perforations." -- Sir T. Browne. [ 1913 Webster] 24 Moby Thesaurus words for " perforation": acupunctuation, acupuncture, bore, boring, broach, drill hole, empiercement, fixing, goring, impalement, lancing, penetration, piercing, pricking, punching, puncture, puncturing, skewering, terebration, transfixation, transfixion, transforation, trepanning, trephining
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