【电】 multicavity klystron
excessive; many; more; much; multi-
【计】 multi
【医】 multi-; pleio-; pleo-; pluri-; poly-
antrum; cavity
【医】 cava; cavern; caverna; cavitas; cavitat; cavity; cavum; celio-; chamber
coel-; coelio-; lumen; lumina; space; spatia; spatium
【电】 velocity modulated tube