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科学时代收录了1160609条科普词条,基本涵盖了常见科普常识及英语词汇的翻译,是科学学习和研究的有利工具。

positive plate positive plate positive plate making positive polarity positive polarity item
positive polarity item positive pole positive pole positive pole material positive politeness strategy
positive-positive printing process positive predictive value positive prescription positive pressure positive pressure
positive pressure positive pressure oxygen system positive presupposition positive print positive pulse
positive punishment positive quantity positive ray positive ray positive reactivity
positive realness positive recurrent state positive reference group positive regard positive reinforcement
positive reinforcement positive reinforcement positive reinforcement positive reinforcement positive relationship
positive relationship positive residual positive right positive rotation positive sample set
positive sanction positive scribing positive semidefinite operator positive shock response spectrum positive shoreline
positive sign positive sign positive skewness positive skewness positive slope
positive social control positive spread positive staining positive step positive strain
positive strand positive strand positive sum game positive-sum game positive synergism
positive synergy positive system positive temperature coefficient thermistor positive temperature effect positive terminal
positive terminal positive terminal positive theology positive time preference positive tolerance
positive transfer positive transfer positive transfer positive transparence positive unconscious
positive value positive variance positive variation of a signed measure positive wave positive Weissenberg effect
positive-working photoresist positive-working plate positive(symmetric)operator positivism positivism
positivism positivism positivism positivism positivism
positivism positivist positivist positivist criminology positivistic literature
positivistic objectivity positivist jurisprudence positivity POSIT (Profiles for Open Systems Internetworking Technology) positron
positron positron positron positron positron annihilation
positron annihilation lifetime measurement positron annihilation lifetime spectra(PALS) positron annihilation technique (PAT) positron annihilation technique (PAT) positron decay
positron disintegration positron electron annihilation positron emission positron emission condition positron emission tomography(PET)
positron emission tomography(PET) positron emission transaxial tomography positron emitter positronium positronium
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