- diameter to thickness ratio
- 1) Нефть: коэффициент отношения диаметра к толщине стенки трубы, отношение диаметра к толщине стенки трубы (коэффициент)2) Нефтегазовая техника отношение диаметра к толщине стенки трубы
Универсальный англо-русский словарь. Академик.ру. 2011.
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Poisson's ratio — ( ν ), named after Simeon Poisson, is the ratio of the relative contraction strain, or transverse strain (normal to the applied load), divided by the relative extension strain, or axial strain (in the direction of the applied load).When a sample… … Wikipedia
fineness ratio — The ratio of the chord to the maximum thickness of an airfoil expressed as a percentage. In the case of other streamlined bodies, it is the ratio of their length to their maximum diameter, or, sometimes, to some equivalent dimension. This is said … Aviation dictionary
Aspect ratio (wing) — In aerodynamics, the aspect ratio of a wing is defined as the square of the wing span divided by the wing area.:AR = {b^2 over S}where: b is the wing span, and: S is the wing area.Informally, a high aspect ratio indicates long, narrow wings,… … Wikipedia
Astigmatism — An optical system with astigmatism is one where rays that propagate in two perpendicular planes have different foci. If an optical system with astigmatism is used to form an image of a cross, the vertical and horizontal lines will be in sharp… … Wikipedia
MDTR — mean diameter thickness ratio … Medical dictionary
MDTR — • mean diameter thickness ratio … Dictionary of medical acronyms & abbreviations
Bicycle frame — Steel frame of 2000 LeMond Zurich road racing bicycle mounted in a work stand … Wikipedia
Dimensionless quantity — In dimensional analysis, a dimensionless quantity or quantity of dimension one is a quantity without an associated physical dimension. It is thus a pure number, and as such always has a dimension of 1.[1] Dimensionless quantities are widely used… … Wikipedia
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Drill bit — For the fictional character, see Drill Bit (Transformers). For the cancelled skyscraper nicknamed Drill bit, see Chicago Spire. For the types used in drilling wells, see Well drilling. From top to bottom: Spade, lip and spur (brad point), masonry … Wikipedia