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1 перфторуглероды
1) Abbreviation: PCFs2) Makarov: perfluorocarbons -
2 сам по себе
Сам по себе - in itself, by itself; on one's own, in its own right, per seThe fiber metal pad in itself is a good insulator because of its porosity.Use can be made of very stable organic fluids which on their own have unsuitable thermodynamic properties - e.g., alkanes and perfluorocarbons.Coal gasification per se is not a new development; it has been in use for many years.It is felt that each [factor] is a complex topic in its own right, deserving individual treatment in depth.Русско-английский научно-технический словарь переводчика > сам по себе
См. также в других словарях:
perfluorocarbons — n. type of greenhouse gas, one of the gases that is thought to cause global warming (Ecology) … English contemporary dictionary
Perfluorocarbons — (PFCs) A group of man made chemicals composed of one or two carbon atoms and four to six fluorine atoms, containing no chlorine. PFCs have no commercial uses and are emitted as a byproduct of aluminum smelting and semiconductor manufacturing.… … Energy terms
Perfluorocarbon — derivatives are perfluorocarbons with some functional group attached, for example perfluorooctanesulfonic acid. Perfluorocarbon derivatives can be very different from perfluorocarbons in their properties, applications and toxicity.The term… … Wikipedia
Kyoto Protocol — Participation in the Kyoto Protocol, as of December 2010, Green = Countries that have signed and ratified the treaty (Annex I II countries in dark green) Grey =… … Wikipedia
Halomethane — compounds are derivatives of methane (CH4) with one or more of the hydrogen atoms replaced with halogen atoms (F, Cl, Br, or I). Halomethanes are both naturally occurring, especially in marine environments, and man made, most notably as… … Wikipedia
Perfluorocarbon tracer — Perfluorocarbon tracers (PFTs) are a range of perfluorocarbons used in tracer applications. They are used by releasing the PFT at a certain point, and determining the concentration of that PFT at another set of points, allowing the flow from the… … Wikipedia
Fowler process — The Fowler Process is an industry and laboratory route to perfluorocarbons, by fluorinating hydrocarbons or their partially fluorinated derivatives in the vapor phase over cobalt(III) fluoride. Background The Manhattan Project required the… … Wikipedia
Greenhouse gas — Simple diagram of greenhouse effect. A greenhouse gas (sometimes abbreviated GHG) is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect.[1] … Wikipedia
Ozone depletion — Image of the largest Antarctic ozone hole ever recorded (September 2006) Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth s… … Wikipedia
Haloalkane — The haloalkanes (also known as halogenoalkanes or alkyl halides) are a group of chemical compounds, consisting of alkanes, such as methane or ethane, with one or more halogens linked, such as chlorine or fluorine, making them a type of organic… … Wikipedia
Blood substitutes — Blood substitutes, often called artificial blood, are used to fill fluid volume and/or carry oxygen and other blood gases in the cardiovascular system. Although commonly used, the term is not accurate since human blood performs many important… … Wikipedia