RECORDING INSTRUMENTS (ASTRONOMY)
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BTASTRONOMICAL INSTRUMENTS AND TECHNIQUES
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UDC520.3
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Descriptor GERREGISTRIERINSTRUMENTE (ASTRONOMIE)
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Descriptor ENGRECORDING INSTRUMENTS (ASTRONOMY)
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Descriptor FREINSTRUMENTS ENREGISTREURS (ASTRONOMIE)
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Variant GERINSTRUMENTE/REGISTRIERINSTRUMENTE (ASTRONOMIE)
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Variant ENGINSTRUMENTS/RECORDING INSTRUMENTS (ASTRONOMY)
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Variant FREENREGISTREURS/INSTRUMENTS ENREGISTREURS (ASTRONOMIE)
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Variant FREAPPAREILS ENREGISTREURS (ASTRONOMIE)
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Variant FREINSTRUMENTS ENREGISTREURS (ASTRONOMIE)
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NTPHOTOELECTRIC INSTRUMENTS (ASTRONOMY)
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NTPHOTOGRAPHIC INSTRUMENTS (ASTRONOMY)
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NTSPECTROMETERS + POLARIMETERS (ASTRONOMY)
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NTSPECTROSCOPIC INSTRUMENTS (ASTRONOMY)