전성관

Speaking Tube, Voice Tube (Pipe)

전속

Full Speed

전식작용

Galvanic Action

전압조정기

Voltage Regulator

전열면

Heating Surface

전열식열교환기

Recuperative Heat Exchainger, Recuperator

전용선

Special Service Ship

전용착금속시험편

All Welded Metal Test Specimen

전자관트레이서

Electronic Tracer

전자기식제동기

Electromagnetic Brake