cold beam gun 冷束枪

cold-beam 冷光束

electron beam cold hearth melting 电子束冷床熔炼

cold light beam 冷光束

cold atomic beam 冷原子束

electron beam cold hearth 电子束冷床

cold molecular beam 冷分子束

cold emitted electron beam 冷发射电子束

Electron Beam Cold Hearth Remelting 电子束冷床熔炼