【化】 bubble gage; bubble gauge
bleb; bubble
【化】 air bell; air blister; air bubble; air checks; air lock; air pocket
air shots; air traps
【医】 air bladder; air cell; air vacuole
indicator
【计】 indicator; P
【化】 indicating gage; indicating gauge; indicator; marker; reporter
telltale; viewer
【医】 detector; inaicator; pointer