英语词汇“step wedge”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	step wedge
释义	DictionarySeepenetrometer step wedge step wedge [′step ‚wej] (graphic arts) A series of tones in steps from white to black usually on film or a glass plate for testing purposes. step wedge step wedge A quality control device consisting of increasing thicknesses of absorber through which radiographs are taken to determine the amounts of radiation reaching the film.See also: wedge step wedge (step wej) Triangular aluminum device placed over a radiographic film during exposure to determine the penetrating ability of an x-ray beam. Synonym(s): penetrometer. FinancialSeewedge
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