낙하시험

Drop Test

낚시대판

Fishing Platform

난류

Turbulent Fliw

난류촉진장치

Turbulence Stimulator

난방장치

Heating Arrangement

난연성재료

Flame Retardant Material

난연재

Fire Retarding Material

난파선

Wreck

날개각

Blade Angle

날개각 지시계

Blade Angle Indicator