separator
(1)分送机
(2)分离器
(3)垫圈
(4)分离片，隔板

• filter transmission band
• filter wheel
• filtration
• filtrator
• fin
• final amplifier
• final assembly
• final control elemnt
• final coutoff
• final etching
• final evaporation
• final gettering
• final mass
• final payload
• final presure
• final pump-down
• final reading
• final stage
• final vacuum
• final value theorem
• finder
• finder aperture
• finder circle
• finder frame
• finder screen