진공청소기

Vacuum Cleaner

진공펌프

Vacuum Pump

진동

Vibration

진동감쇠장치

Vibration Damper

진동계

Vibrometer

진동레벨

Vibration Level

진동응력

Stress due to Vibration

진동피더

Vimration Feeder

진동해머

Vibration Hammer

진동허용한계

Allowable Limits of Vibration