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natural quartz

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См. также в других словарях:

  • Quartz — This article is about the mineral. For other uses, see Quartz (disambiguation). Quartz Quartz crystal cluster from Tibet General Category …   Wikipedia

  • Quartz crystal microbalance — A quartz crystal microbalance (QCM) measures a mass per unit area by measuring the change in frequency of a quartz crystal resonator. The resonance is disturbed by the addition or removal of a small mass due to oxide growth/decay or film… …   Wikipedia

  • quartz movement — quartz′ move′ment n. hor an extremely accurate electronic movement utilizing the natural frequency of vibrations of a quartz crystal to regulate the operation of a timepiece(quartz′ clock′ or quartz′ watch′) …   From formal English to slang

  • Natural Bridge State Park (Massachusetts) — Natural Bridge State Park Massachusetts State Park …   Wikipedia

  • quartz crystal — n. Electronics a thin, natural or synthetic, piezoelectric crystal of silicon dioxide cut and ground to a precise thickness so as to vibrate at a particular frequency when supplied with energy * * * …   Universalium

  • quartz crystal — n. Electronics a thin, natural or synthetic, piezoelectric crystal of silicon dioxide cut and ground to a precise thickness so as to vibrate at a particular frequency when supplied with energy …   English World dictionary

  • quartz — quartzose /kwawrt sohs/, quartzous /kwawrt seuhs/, adj. /kwawrts/, n. one of the commonest minerals, silicon dioxide, SiO2, having many varieties that differ in color, luster, etc., and occurring either in masses (as agate, bloodstone, chalcedony …   Universalium

  • quartz glass — noun colorless glass made of almost pure silica • Syn: ↑quartz, ↑vitreous silica, ↑lechatelierite, ↑crystal • Derivationally related forms: ↑crystallize (for: ↑crystal), ↑ …   Useful english dictionary

  • Quartz hyalin concrétionné — Opale Opale Catégorie III : oxydes et hydroxydes Opale AG (Opale précieuse) (5x2.5cm) Mexique …   Wikipédia en Français

  • Quartz nectique — Opale Opale Catégorie III : oxydes et hydroxydes Opale AG (Opale précieuse) (5x2.5cm) Mexique …   Wikipédia en Français

  • quartz movement — Horol. an extremely accurate electronic movement utilizing the natural frequency of vibrations of a quartz crystal to regulate the operation of the timepiece (quartz clock or quartz watch). * * * …   Universalium

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