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discharge tubes, electric, other than for lighting
gen.	Entladungsröhren elektrisch, nicht für Beleuchtungszwecke

discharge tubes: 60 phrases in 13 subjects

Analytical chemistry	3
Chemistry	2
Construction	1
General	7
Industry	3
Information technology	1
Measuring instruments	2
Mechanic engineering	1
Optics branch of physics	5
Physics	9
Technology	23
Vacuum tubes	1
Радиоактивное излучение	2