英语词汇“perforation gauge”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	perforation gauge
释义	WordReference Random House Unabridged Dictionary of American English © 2024 perfora′tion gauge′, [Philately.] Stampsa marked ruler used to measure the number of perforations per unit length along the borders of a stamp. 1890–95
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