rigid surface
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Rigid gas permeable — lenses are rigid contact lenses made of oxygen permeable polymers. Initially developed in the late 1970s, and through the 1980s and 1990s, they were an improvement over prior hard lenses that restricted oxygen transmission to the eye. Rigid… … Wikipedia
Surface micromachining — is a process used to produce micromachinery or MEMS.Unlike Bulk micromachining, where a silicon substrate (wafer) is selectively etched to produce structures, surface micromachining is based on the deposition and etching of different structural… … Wikipedia
Rigid body — Classical mechanics Newton s Second Law History of classical mechanics … Wikipedia
Rigid designator — In modal logic and the philosophy of language, a term is said to be a rigid designator when it designates (picks out, denotes, refers to) the same thing in all possible worlds in which that thing exists and does not designate anything else in… … Wikipedia
Rigid-hulled inflatable boat — A rigid inflatable boat (RIB) or rigid hulled inflatable boat, (RHIB) is a light weight but high performance and high capacity boat constructed with a solid, shaped hull and flexible tubes at the gunwale. The design is stable and seaworthy. The… … Wikipedia
Surface effect ship — A Surface Effect Ship (SES) or Sidewall Hovercraft, is a watercraft or vessel that has both an air cushion, like a hovercraft, and twin hulls, like a catamaran. When the air cushion is in use, a small portion of the twin hulls remain in the water … Wikipedia
Surface — This article discusses surfaces from the point of view of topology. For other uses, see Differential geometry of surfaces, algebraic surface, and Surface (disambiguation). An open surface with X , Y , and Z contours shown. In mathematics,… … Wikipedia
surface coating — ▪ chemistry Introduction any mixture of film forming materials plus pigments, solvents, and other additives, which, when applied to a surface and cured or dried, yields a thin film that is functional and often decorative. Surface coatings… … Universalium
Surface water sports — The following is a list of surface water sports; these are sports which are performed atop a body of water.kurfingSkurfing a popular surface watersport in which the participant is towed on a surfboard, behind a boat, with a ski rope. Skurfing is… … Wikipedia
surface plate — noun : a steel instrument of precision having a dressed flat surface or sometimes two surfaces at right angles and used as a standard of flatness * * * Mach. a flat plate used by machinists for testing surfaces that are to be made perfectly flat … Useful english dictionary
surface rest — a rigid extension of a partial denture, which contacts the unaltered extracoronal surface of a tooth … Medical dictionary
