短語(yǔ)詞組短語(yǔ)electron -beam welder -beam welding machine 電子束銲機(jī)electron generally beam welding 電子束銲接activating electron -beam welding 活性電子束銲接programmed electron -beam welding 程控電子束銲接electron beam welding machine 電子束銲接機(jī);[機(jī)]電子束銲機(jī)vacuum electron beam welding 真空電子束銲 返回 electron beam welding