- coefficient of utilization of energy
- 能的利用系数
Medical Chinese dictionary (湘雅医学词典). 2013.
Medical Chinese dictionary (湘雅医学词典). 2013.
Coefficient of utilization — A coefficient of utilization (CU) is a measure of the efficiency of a luminaire in transferring luminous energy to the working plane in a particular area. The CU is the ratio of luminous flux from a luminaire incident upon a work plane to that… … Wikipedia
Coefficient of Utilization — (CU) A term used for lighting appliances; the ratio of lumens received on a flat surface to the light output, in lumens, from a lamp; used to evaluate the effectiveness of luminaries in delivering light … Energy terms
Luminous energy — In photometry, luminous energy is the perceived energy of light. This is sometimes also called the quantity of light.Luminous energy is not the same as the radiant energy, the corresponding objective physical quantity. This is because the human… … Wikipedia
coefficient — 1. The expression of the amount or degree of any quality possessed by a substance, or of the degree of physical or chemical change normally occurring in that substance under stated conditions. 2. The ratio or factor that relates a quantity… … Medical dictionary
Annual fuel utilization efficiency — The annual fuel utilization efficiency (AFUE; pronounced A Few ) is a thermal efficiency measure of combustion equipment like furnaces, boilers, and water heaters. The AFUE differs from the true thermal efficiency in that it is not a steady state … Wikipedia
List of energy abbreviations — This is a list of abbreviations found in the context of energy issues. Contents: 0–9 A B C D E F G H I J K L M N O P Q R S T U V W X Y … Wikipedia
Wireless energy transfer — or wireless power is the transmission of electrical energy from a power source to an electrical load without artificial interconnecting conductors. Wireless transmission is useful in cases where interconnecting wires are inconvenient, hazardous,… … Wikipedia
Luminous efficacy — is a measure of how well a light source produces visible light. It is the ratio of luminous flux to power. Depending on context, the power can be either the radiant flux of the source s output, or it can be the total electric power consumed by… … Wikipedia
Ceravision — is a privately owned lighting company based in Bletchley Park, UK. Ceravision is the inventor of a range of electrodeless lamps and integrated luminaires under the trade name Alvara, the world s first High Efficiency Plasma (HEP) lamp. [1] [2]… … Wikipedia
Tailings — A panorama of Broken Hill, New South Wales, backed by the man made mullock (waste tailings) heaps from the Line of Lode mine (the mullock heaps are the hills that stretch across this image). Tailings, also called mine dumps, slimes, tails, leach… … Wikipedia
hydrosphere — /huy dreuh sfear /, n. the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere. [1885 90; HYDRO 1 + SPHERE] * * * Discontinuous layer of water at or near the Earth s surface. It… … Universalium