英语词汇“perforation”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-新都网

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单词	perforation
释义	per·fo·ra·tion \ˌpərfəˈrāshən, ˌpə̄f-, ˌpəif-\ noun (-s) Etymology: New Latin, from Latin perforatus + New Latin -orium — more at perforate 1. : the act or process of perforating < a machine for the perforation of a sheet of stamps at one stroke > specifically : the penetration of a body part through accident or disease < spontaneous perforation of the sigmoid colon in the presence of diverticulosis — Journal American Medical Association > 2. a. (1) : a hole or pattern made by piercing or boring < perforations on the edge of the film engage sprockets in the projector > < mark all perforations which indicate seams, darts … and buttonhole locations — Needlecraft for the Home > < overprints gave way to perforations — Gordon Ward > specifically : a series or one of a series of holes made in a shoe upper for ornament or ventilation (2) : a series of small incisions to facilitate tearing along a predetermined line b. (1) : one of the series of holes made between rows of postage stamps in a sheet — compare pin perforation, roulette (2) : one of the teeth on the edge of a detached stamp resulting from tearing along the series of holes (3) or perforation number : a philatelic classification based on the number of perforations along the edge of a stamp per 20 millimeters c. : a rupture in a body part caused by accident or disease d. : a natural opening in an organ or body part < small perforations opening at the bottom of the sulci — Ferdinand Canu & R.S.Bassler >
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