- signal-to-noise ration
- (S/N)信噪比
Medical Chinese dictionary (湘雅医学词典). 2013.
Medical Chinese dictionary (湘雅医学词典). 2013.
David L. Fried — is a scientist, best known for his contributions to optics. Fried described what has come to be known as Fried s seeing diameter, or r0 (usually pronounced r naught). The seeing diameter is effectively a limiting aperture due to atmospheric… … Wikipedia
Atomabsorptionsspektrometrie — AA Spektrometer Die Atomabsorptionsspektrometrie (AAS) ist ein zur Gruppe der Atomspektrometrie gehörendes analytisches Verfahren. In der analytischen Chemie ist sie eine bewährte und schnelle Methode zur quantitativen und qualitativen Analyse… … Deutsch Wikipedia
ratio — An expression of the relation of one quantity to another ( e.g., of a proportion or rate). SEE ALSO: index (2), quotient. [L. r. (ration ) a reckoning, reason, fr. reor, pp. ratus, to reckon, compute] absolute terminal innervation r. the number… … Medical dictionary
List of U.S. Marine Corps acronyms and expressions — This is a list of acronyms, expressions, euphemisms, jargon, military slang, and sayings in common or formerly common use in the United States Marine Corps. Many of the words or phrases have varying levels of acceptance among different units or… … Wikipedia
List of United States Marine Corps acronyms and expressions — This is a list of acronyms, expressions, euphemisms, jargon, military slang, and sayings in common or formerly common use in the United States Marine Corps. Many of the words or phrases have varying levels of acceptance among different units or… … Wikipedia
List of vacuum tubes — This is a list of vacuum tubes or thermionic valves. Before the advent of semiconductor devices, hundreds of tube types were used in consumer and industrial electronics; today only a few types are still used in specialized applications. Contents… … Wikipedia
animal learning — ▪ zoology Introduction the alternation of behaviour as a result of individual experience. When an organism can perceive and change its behaviour, it is said to learn. That animals can learn seems to go without saying. The cat that… … Universalium
Trench warfare — is a form of warfare where both combatants have fortified positions and fighting lines are static. Trench warfare arose when a revolution in firepower was not matched by similar advances in mobility. The result was a slow and grueling form of… … Wikipedia
Sleeping Dogs (Enterprise) — ST episode name =Sleeping Dogs series =Enterprise ep num =13 prod num =114 date =January 30, 2002 writer =Fred Dekker director =Les Landau producer =Dawn Valazquez guest =Michelle C. Bonilla Vaughn Armstrong stardate =unknown year =2151 prev… … Wikipedia
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Blank (cartridge) — A blank is a type of cartridge for a firearm that contains gunpowder but no bullet or shot. When fired, the blank makes a flash and an explosive sound (report).It should not be confused with a dummy, which does not contain gunpowder, and is… … Wikipedia