east zone beam 东区波束

electron beam zone-refining 电子束区带精炼

zone coverage beam 区域覆盖波束

Electron Beam Floating Zone Melting 电子束悬浮区域熔炼

electron beam zone refining furnace 电子束区域熔炼炉

electron-beam floating zone furnace 电子束浮区提纯炉

beam zone 波束区

electro-beam floating zone melting [冶] 电子束悬浮区熔

electron beam zone melting 电子束区域熔炼

electron-beam zone refining 电子束区域精炼