英语词汇“porro prism”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	porro prism
释义	por·ro prism \ˈpȯ(ˌ)rō-\ noun Usage: usually capitalized 1st P Etymology: after Ignazio Porro died 1875 Italian engineer : an optical device that inverts and reverses right and left an image viewed through it, that consists usually of a pair of isosceles right-angled prisms so arranged that a beam of light entering the hypotenuse face of one is totally reflected twice before emerging at the same face and entering the second prism at its hypotenuse face and being again doubly reflected, and that makes possible a shortening of the physical length of the instrument in which it is used — see prism binocular
随便看	denouement denounce denouncement denouncer de novo dens densate densation dense densely densen denseness densification densifier densify densimeter densimetric densimetrically densitometer densitometric densitometry density density density altitude density function

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