"03622526-n"^^ . "0"^^ . "an electron tube used to generate or amplify electromagnetic radiation in the microwave region by velocity modulation"@en-us . . . . . . "102892459"@en-us . . "0"^^ . "103622526"^^ . . . . . "klystron"@en-us . "klystron"^^ . "103487846"@en-us .