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Connections
fluorescent lamp
Entity
vacuum tube
Entity
aluminium oxide
Entity
cathode ray tube
Entity
oxygen
Entity
aluminium
Entity
calcium
Entity
silicon
Entity
electron
Entity
titanium
Entity
International Standard Book Number
Entity
barium
Entity
strontium
Entity
scandium
Entity
tungsten
Entity
molybdenum
Entity
yttrium
Entity
tantalum
Entity
zirconium
Entity
hafnium
Entity