- penetration barrier
- Парфюмерия: барьер проницаемости
Универсальный англо-русский словарь. Академик.ру. 2011.
penetration barrier
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Penetration (firestop) — A penetration, in firestopping, is an opening , such as one created by the use of a cast in place sleeve, in a wall or floor assembly required to have a fire resistance rating, for the purpose of accommodating the passage of a mechanical,… … Wikipedia
Penetration pricing — For other pricing strategies and policies please see here: Pricing Strategies Penetration pricing is the pricing technique of setting a relatively low initial entry price, a price that is often lower than the eventual market price. The… … Wikipedia
barrier penetration factor — potencialo barjero skaidris statusas T sritis fizika atitikmenys: angl. barrier penetration factor; transparency of the potential barrier vok. Durchdringungsfaktor des Potentialwalls, m; Gamow Faktor, m rus. коэффициент прозрачности… … Fizikos terminų žodynas
barrier — /bar ee euhr/, n. 1. anything built or serving to bar passage, as a railing, fence, or the like: People may pass through the barrier only when their train is announced. 2. any natural bar or obstacle: a mountain barrier. 3. anything that… … Universalium
Penetration (telecommunications) — In telecommunication, the term penetration has the following meanings: # The passage through a partition or wall of an equipment or enclosure by a wire, cable, or other conductive object. # The unauthorized act of bypassing the security… … Wikipedia
Barrier Combat Air Patrol — BARCAP, patrol of combat aircraft to prevent penetration of enemy aircraft into a particular airspace … English contemporary dictionary
Blood-brain barrier — The blood brain barrier (BBB) is a metabolic or cellular structure in the central nervous system (CNS) that restricts the passage of various chemical substances and microscopic objects (e.g. bacteria) between the bloodstream and the neural tissue … Wikipedia
Cable barrier — Cable barrier, sometimes referred to as guard cable, is a type of roadside or median barrier. It consists of steel wire ropes mounted on weak posts. As is the case with any roadside barrier, its primary purpose is to prevent a vehicle from… … Wikipedia
Coulomb barrier — The Coulomb barrier, named after Coulomb s law, which is named after physicist Charles Augustin de Coulomb (1736–1806), is the energy barrier due to electrostatic interaction that two nuclei need to overcome so they can get close enough to… … Wikipedia
Vapor barrier — 6 mil Polyethylene plastic sheet as vapor barrier between insulation and gypsum board … Wikipedia
Weismann barrier — The Weismann barrier is the principle that hereditary information moves only from genes to body cells, and never in reverse. In more precise terminology hereditary information moves only from germline cells to somatic cells (that is, soma to… … Wikipedia
