- fixed oxygen
- 化合氧
English-Chinese metallurgy dictionary. 2014.
fixed oxygen
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Oxygen — This article is about the chemical element and its most stable form, O2 or dioxygen. For other forms of this element, see Allotropes of oxygen. For other uses, see Oxygen (disambiguation). nitrogen ← oxygen → fluorine ↑ O ↓ … Wikipedia
Oxygen mask — A plastic oxygen mask on an ER patient. An oxygen mask provides a method to transfer breathing oxygen gas from a storage tank to the lungs. Oxygen masks may cover the nose and mouth (oral nasal mask) or the entire face (full face mask). They may… … Wikipedia
oxygen point — noun : the normal boiling point of liquid oxygen which is 182.97° C and which is used as one of the fixed points of the international temperature scale … Useful english dictionary
fixed carbon — n in the case of coal, coke, and bituminous materials, the solid residue other than ash, obtained by destructive distillation, determined by definite prescribed methods. DISCUSSION It is made up principally of carbon but may contain appreciable… … Coke&Coal Terminology
Chemical oxygen generator — A chemical oxygen generator is a device releasing oxygen created by a chemical reaction. The oxygen source is usually an inorganic superoxide, chlorate, or perchlorate. A promising group of oxygen sources are ozonides. The generators are usually… … Wikipedia
Chemical oxygen demand — In environmental chemistry, the chemical oxygen demand (COD) test is commonly used to indirectly measure the amount of organic compounds in water. Most applications of COD determine the amount of organic pollutants found in surface water (e.g.… … Wikipedia
Biochemical oxygen demand — or Biological Oxygen Demand (BOD) is a chemical procedure for determining how fast biological organisms use up oxygen in a body of water. It is used in water quality management and assessment, ecology and environmental science. BOD is not an… … Wikipedia
cyclic fixed-bed system — A process were the feed and conditions in a catalytic reactor are changed regularly in an alternating fashion. The most common example is where the reaction deposits coke; feed is passed through the bed continuously until the activity falls to a… … Petroleum refining glossary
biological oxygen demand — a measure of the quantity of oxygen needed to incorporate or oxidise organic waste material into the environment or a measure of oxygen consumption over a fixed time period. A high demand will restrict the fish fauna. Abbreviated as BOD … Dictionary of ichthyology
Air Canada — IATA AC ICAO ACA Callsign AIR CANADA … Wikipedia
chemistry — /kem euh stree/, n., pl. chemistries. 1. the science that deals with the composition and properties of substances and various elementary forms of matter. Cf. element (def. 2). 2. chemical properties, reactions, phenomena, etc.: the chemistry of… … Universalium
