Перевод: со всех языков на все языки

со всех языков на все языки

percentage of nitrogen in air

См. также в других словарях:

  • percentage - per cent — When you express an amount as a percentage of a whole, you say how many parts the amount would have if the whole had 100 equal parts. You write a percentage as a number followed by per cent or by the symbol %. So, for example, if there are 1200… …   Useful english dictionary

  • Nitrogen washout — (or Fowler s method) is a test for measuring dead space in the lung during a respiratory cycle, as well as some parameters related to the closure of airways. Contents 1 Procedure 2 Parameters 3 See also 4 References …   Wikipedia

  • nitrogen group element — ▪ chemical elements Introduction  any of the chemical elements that constitute Group Va of the periodic table (see Figure >). The group consists of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The elements share… …   Universalium

  • Air pollution — from World War II production Smog over …   Wikipedia

  • Nitrogen trifluoride — Nitrogen trifluoride …   Wikipedia

  • air — air1 airlike, adj. /air/, n. 1. a mixture of nitrogen, oxygen, and minute amounts of other gases that surrounds the earth and forms its atmosphere. 2. a stir in the atmosphere; a light breeze. 3. overhead space; sky: The planes filled the air. 4 …   Universalium

  • Aïr — /ah ear/, n. a region in N Niger, in the Sahara: low massif and oases. ab. 30,000 sq. mi. (77,700 sq. km). Also called Asben. * * * I Mixture of gases constituting the earth s atmosphere. Some gases occur in steady concentrations. The most… …   Universalium

  • air — 1. A mixture of odorless gases found in the atmosphere in the following approximate percentages by volume after water vapor has been removed: oxygen, 20.95; nitrogen, 78.08; argon 0.93; carbon dioxide, 0.03; other gases, 0.01. Formerly used to …   Medical dictionary

  • Enriched Air Nitrox — Nitrox refers to any gas mixture composed (excluding trace gases) of nitrogen and oxygen; this includes normal air which is approximately 78% nitrogen and 21% oxygen, with around 1% inert gases, primarily argon.cite book |title=Bennett and… …   Wikipedia

  • Liquid air — For the automobile, see Liquid Air. Liquid air is air that has been cooled to very low temperatures so that it has condensed to a liquid. It must be kept in a Dewar flask at room temperature. Liquid air can absorb heat rapidly and revert to its… …   Wikipedia

  • Mobile source air pollution — includes any air pollution that is emitted by motor vehicles, engines, and equipment that can be moved from one location to another. Many of these pollutants contribute to environmental degradation and negative human health effects. To prevent… …   Wikipedia

Поделиться ссылкой на выделенное

Прямая ссылка:
Нажмите правой клавишей мыши и выберите «Копировать ссылку»