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单词	positive focal plane
释义	positive focal plane photo plane Photo plane at an angle of depression of 18°.The plane occupied by the film at the focal point of the lens. Also called a positive focal plane.
随便看	ijcdas ijce ijcec ijcee ijceell ijcees ijceh ijcent ijcer ijces ijcf ijcfd ijcg ijcga ijch ijche ijchp ijchr ijci ijcia ijcic ijcim ijcio ijcir ijcis

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