“aperture”的概念、定义、翻译、参考文献-科学参考

单词	aperture
释义	aperture [`ap·ǝ´chǝr] ^ELECTRONICS An opening through which electrons, light, radio waves, or other radiation can pass. ^{GRAPHIC ARTS} A rectangular cutout on an aperture card. ^OPTICS The diameter of the objective of a telescope or other optical instrument, usually expressed in inches, but sometimes as the angle between lines from the principal focus to opposite ends of a diameter of the objective.
随便看	decay area decay chain decay coefficient decay constant decay cooling decay curve decay distance decay family decay gammas decay heat decay mode decay of waves decay product decay rate decay series decay time Decca Decca chain Decca chart Deccan basalt Deccan trap decelerating electrode deceleration deceleration parachute deceleration time

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