유랍잭유닛

Hydraulic Jack Unit

유량

Flow Rate, Discharge

유리섬유

Glss Fiber, Span Glass

유리섬유강화플라스틱선

Glass Fiber Reinforcer Plastic Ship, Plastic Ship

유리섬유보온재

Glass Wool Heat Insulating Material

유막윤활

Film Lubrication

유망

Drift Net

유망어선

Drifter

유밀격벅

Oiltight Bulkhead

유밀시험

Oiltight Test