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DIAPHRAGM FOR PHOTOGRAPHIC MEASURING OF RADIATION FROM CELESTIAL BODIES AND SKY BACKGROUND
DIAPHRAGM FOR PHOTOGRAPHIC MEASURING OF RADIATION FROM CELESTIAL BODIES AND SKY BACKGROUND
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机译:膜片照相法测量天体辐射及天空背景
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摘要
the invention относитс to photometry and may find application in the фотометрах дл registration of light flows from objects with the background излучени , частност and in light of the registration o
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