sealed transportation unit with oxygen supplementa

identical unit or proportional unit of the body

time-rock unit =time-stratigraphic unit

a sealed book

active-type sealed oil blocking

Air-sealed

bellow sealed valve

bellows sealed gate valve

board style sealed secondary battery

circular sealed connector

Cylindrical sealed battery

cylindrical sealed space

double-sealed

Earth surface sealed

fire fighting in sealed cabin

flooded sealed betteries

flow path sealed structure

friction sealed bearing

Gauges containing sealed radioactive source

Glass Sealed