휘발성물질

Volatile Matter

휘핑

Whipping

휴대등

Portable Light, Portable Lamp, Hand Light

휴대식소화기

Portable Fire Extinguisher

휴대식자기컴퍼스

Portable Type Magnetic Compass

휴대용가스탐지기

Portable Explosion Meter

흐름

Flow

흑구

Black Ball

흑연

Black Lead, Graphite

흑연패킹

Graphite Packing