Frequency Chanher

주파수변환기

File Brush, File Card

줄솔

Full Scantling Vessel

중구선

Fin

지느러미

Foreman

직장

Fire-smothering Gas

진화가스

Firing Order

착화순서

Fresh Water Heater

청수가열기

F W Pressure Tank, F W Hydrophone Tank

청수압력탱크

F W Filter, F W Strainer

청수여과기