Kelvin

Celsius

Rankine

Fahrenheit

TIG welding

Silver brazing

Lead soldering

Fusion welding

Condenser and filter

Evaporator and motor

Receiver and condenser

Compressor and expansion device

The piston moves down from the point of cylinder

The piston moves up from the point of cylinder

The piston stops in cylinder at bottom

The piston starts in cylinder at bottom

Thermoheater

Defrost timer

Relay

OLP