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SCIENTIFIC ABSTRACT LEVITANSKIY, B.- LEVITIN, B.YE.
approximately 30-40 times that of the UFO-4A tube which has similar spectral distribution. An increase in tube ...
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SCIENTIFIC ABSTRACT KUDRZYCKA-BIELOSZABSKA, F.- KUDZIN, A.YU.
is fixed in the side of the cylinder. Ultra-ViOlet rays produced by UFO-4 valve cause the luminescence ...