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(with weighting material)

См. также в других словарях:

  • ITU-R 468 noise weighting — The ITU R 468 weighting curve (originally defined in CCIR recommendation 468) is widely used when measuring noise in audio systems, especially in the UK, Europe, and former countries of the British Empire such as Australia and South Africa. It is …   Wikipedia

  • Noise weighting — A noise weighting is a specific amplitude vs. frequency characteristic that is designed to allow subjectively valid measurement of noise. It emphasises the parts of the spectrum that are most important. Usually, noise means audible noise, in… …   Wikipedia

  • Composite material — A cloth of woven carbon fiber filaments, a common element in composite materials Composite materials, often shortened to composites or called composition materials, are engineered or naturally occurring materials made from two or more constituent …   Wikipedia

  • Sievert — The sievert (symbol: Sv) is the International System of Units (SI) SI derived unit of dose equivalent radiation. It attempts to quantitatively evaluate the biological effects of ionizing radiation as opposed to just the absorbed dose of radiation …   Wikipedia

  • Calcium carbonate — Calcium carbonate …   Wikipedia

  • Rocket engine — RS 68 being tested at NASA s Stennis Space Center. The nearly transparent exhaust is due to this engine s exhaust being mostly superheated steam (water vapor from its propellants, hydrogen and oxygen) …   Wikipedia

  • Film memorabilia — consist of objects considered of value because of their connection to the cinema. These include costumes, props, advertising posters, and scripts, among other things. Fans have always coveted memorabilia, but in recent years, what was once a… …   Wikipedia

  • Baker Hughes — Infobox Company company name = Baker Hughes Incorporated company company type = Public (nyse|BHI) company slogan = Core Values of Integrity, Teamwork, Performance Learning foundation = 1987 (merger) location = flagicon|US Houston, Texas, USA key… …   Wikipedia

  • Art of Illusion — Infobox Software name = Art Of Illusion caption = Screenshot of ArtOfIllusion v2.3.1 showing scene view and render developer = Peter Eastman latest release version = 2.6.1 latest release date = August 3, 2008 latest test release version = latest… …   Wikipedia

  • Z scale — Infobox Model Rail Scale name = Z Scale image filename = image caption = widthpx = scale = ratio = 1:220 gauge = 6.5 mm prototype gauge = Standard gauge|Until the 2006 announcement of T scale, Z scale (1:220) was the smallest commercially… …   Wikipedia

  • Life-cycle assessment — Cradle to grave redirects here. For other uses, see Cradle to the Grave (disambiguation). A life cycle assessment (LCA, also known as life cycle analysis, ecobalance, and cradle to grave analysis)[1] is a technique to assess environmental impacts …   Wikipedia

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