- convex crown
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куполовидный свод
English-Russian dictionary of geology. 2011.
convex crown
Смотреть что такое "convex crown" в других словарях:
crown lens — n. a lens made of crown glass; specif., the convex member of an achromatic lens … English World dictionary
Crown jewels — The Imperial State Crown of the United Kingdom Crown jewels are jewels or artifacts of the reigning royal family of their respective country. They belong to monarchs and are passed to the next sovereign to symbolize the right to rule. They may… … Wikipedia
crown — crownless, adj. /krown/, n. 1. any of various types of headgear worn by a monarch as a symbol of sovereignty, often made of precious metal and ornamented with valuable gems. 2. a similar ornamental headgear worn by a person designated king or… … Universalium
Crown glass (optics) — This article is about crown glass as used in optics. For the window glass, see Crown glass (window). Crown glass is type of optical glass used in lenses and other optical components. It has relatively low refractive index (≈1.52) and low… … Wikipedia
crown glass — 1. an optical glass of low dispersion and generally low index of refraction. 2. an old form of window glass formed by blowing a globe and whirling it into a disk. [1700 10] * * * handmade glass of soda lime composition for domestic glazing… … Universalium
crown — [[t]kraʊn[/t]] n. 1) gov any of various types of headgear, often made of precious metal and set with gems, worn by a monarch as a symbol of sovereignty 2) gov the power or dominion of a sovereign 3) gov (often cap.) the sovereign as head of the… … From formal English to slang
crown — [1] The tread area of a tire. [2] The top part of the head of a piston. [3] The outward curvature of an apparently flat sheet metal panel. [4] The curve or convex surface of a properly finished weld. [5] A model of automobile manufactured by… … Dictionary of automotive terms
crown lens — noun a lens made of optical crown glass • Hypernyms: ↑lens, ↑lense, ↑lens system * * * noun : the crown glass component of an achromatic lens * * * Optics. a lens made of crown glass, usually used as the converging lens component of an achromatic … Useful english dictionary
Crown glass — Glass Glass (gl[.a]s), n. [OE. glas, gles, AS. gl[ae]s; akin to D., G., Dan., & Sw. glas, Icel. glas, gler, Dan. glar; cf. AS. gl[ae]r amber, L. glaesum. Cf. {Glare}, n., {Glaze}, v. t.] [1913 Webster] 1. A hard, brittle, translucent, and… … The Collaborative International Dictionary of English
Petition Crown — The Petition Crown is a coin created in 1663 by Thomas Simon, an engraver. It was submitted directly to Charles II, King of England as Simon’s personal “Petition” that only his coin should be considered as the new format for all future British… … Wikipedia
microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… … Universalium
