单词 | 千分之 |
释义 | 〔riblet〕One of a series of microscopic grooves, each a few thousandths of an inch wide, inscribed on the surface of an adhesive-backed tape and used on airplanes and boat hulls to reduce drag.拉条:一系列细微的沟(或槽),每一个为千分之几英寸宽,刻在带背胶的胶带的表面,并用在飞机及船的彀上的以降低拉力〔millesimal〕Relating to thousandths.有关千分之几的〔ppt〕Parts per thousand.千分率,千分之… |
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