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科学参考收录了60776条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。

power supply power supply rail power(symbol: P; unit: watt) power transformer power transistor
power up power waves power winding Powhatan poxvirus
Poynings’ Law (1494) Poynting, John Henry Poynting vector Poynting–Robertson effect pozzolan
p-parameter ppb PPE PPI PPL
PPM ppm PPM Star Catalogue PPP p-p plot
PPR p-process P-protein practical reason practical syllogism
praecipitatio praedicabilia praedicamenta praedichnia Praemunire, Statute of (1353)
Praesepe praetorian Praghian pragma pragmatic contradiction
pragmaticism pragmatics Pragmatic Sanction pragmatic theory of truth pragmatism
Prague, Defenestration of (1618) prairie prairie dog praise and blame pramana
Prandtl, Ludwig (1875–1953) Prandtl number Prandtl’s one-seventh power law Prasad, Rajendra (1884–1963) praseodymium
Pratt, John Henry Pratt, John Henry (?1811–1871) Pratt model prawn praxeology
praxis prayer PRE pre- pre-adaptation
preadaptation preamble sequence preamplifier Prebisch thesis Pre-Boreal
Preboreal prebreathing Precambrian pre-cataclysmic variable precautionary motive
precautionary principle precaval vein precedence precedence parsing preceding
precessing orbit precession precessional motion precession constant precession of the equinoxes
precipitable water precipitate precipitation precipitation-efficiency index precipitation fog
precipitin precisification precision precision approach radar precision inertial measurement
precision(in statistics) precision(numerical analysis) precision ranging precision rectifier precocial species
precognition pre-commitment precondition Precourt, Charles Jr (1955– ) precursor
precursor pulse predation predator predatory pricing predator–prey equations
predator–prey relationships predestination predetermination predetermined variable predicables
predicate predicate calculus predicate(in logic) predicate logic predicate transformer
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