1  2  3 

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2  _  _  _

3  _  _  _


ACROSS
1)  a polymer of vinyl chloride used instead of rubber in electric cables
2)  an agency in the department of transportation that is responsible for the safety of civilian aviation
3)  a vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen


DOWN
1)  a powerful greenhouse gas emitted during the production of aluminum
2)  a unit of electrical power in an ac circuit equal to the power dissipated when 1 volt produces a current of 1 ampere
3)  feline mammal usually having thick soft fur and no ability to roar: domestic ___s; wild___s

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pvc
faa
crt