- constant-level surface
- 等高面
Atmospheric Sciences (English-Chinese) dictionary. 2014.
constant-level surface
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Surface mining — is a type of mining in which soil and rock overlying the mineral deposit are removed. It is the opposite of underground mining, in which the overlying rock is left in place, and the mineral removed through shafts or tunnels. Surface mining is… … Wikipedia
level — levelly, adv. levelness, n. /lev euhl/, adj., n., v., leveled, leveling or (esp. Brit.) levelled, levelling, adv. adj. 1. having no part higher than another; having a flat or even surface. 2. being in a plane parallel to the plane of the horizon; … Universalium
Level set — In mathematics, a level set of a real valued function f of n variables is a set of the form: { ( x 1,..., x n ) | f ( x 1,..., x n ) = c }where c is a constant. That is, it is the set where the function takes on a given constant value. For… … Wikipedia
level — 1. adjective 1) a smooth and level surface Syn: flat, smooth, even, uniform, plane, flush, plumb Ant: uneven, bumpy 2) he kept his voice level Syn … Thesaurus of popular words
level — 1. adjective 1) a smooth and level surface Syn: flat, smooth, even, uniform, plane, flush, horizontal 2) he kept his voice level Syn: steady, even, uniform, regular … Synonyms and antonyms dictionary
level set — 1. noun a) The set of values x for which a real valued function f(x) is equal to a given constant. b) (business) An event consisting of level setting Syn: agreement See Also: level curve, level hypersurface, leve … Wiktionary
Surface weather observation — Surface weather observations are the fundamental data used for safety as well as climatological reasons to forecast weather and issue warnings worldwide. [Office of the Federal Coordinator of Meteorology. [http://www.ofcm.gov/fmh 1/pdf/B CH2.pdf… … Wikipedia
Constant false alarm rate — (CFAR) detection refers to a common form of adaptive algorithm used in radar systems to detect target returns against a background of noise, clutter and interference. Other detection algorithms are not adaptive. Non adaptive detectors are… … Wikipedia
level — [lev′əl] n. [OFr livel < VL * libellus < L libella, dim. of libra, a balance, level, weight] 1. an instrument for determining, or adjusting a surface to, an even horizontal plane: it has a glass tube partly filled with liquid so as to leave … English World dictionary
Level sensor — Level sensors are used to detect liquid level. The liquid to be measured can be inside a container or can be in its natural form (e.g. a river or a lake). The level measurement can be either continuous or point values. Continuous level sensors… … Wikipedia
Surface conductivity — is an additional electric conductivity of fluid in the vicinity of the charged surface. Fluid conductivity is associated with ions motion in electric field. Concentration of ions is higher close to the charged surfaces. They are attracted there… … Wikipedia
