英语词汇“secret mark”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	secret mark
释义	secret mark noun : a minute mark on a stamp or currency note introduced in the die or plate as a distinguishing mark of a particular engraver or of a particular plate or printer rather than as part of the design
随便看	refractility refracting refracting angle refracting system refracting telescope refraction refraction refraction angle refractionate refractionation refraction circle refractionist refractive refractive refractive index refractively refractiveness refractive power refractive system refractivity refractivity refractometer refractometer refractometric refractometry

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