374 / | HD | THERMAL MEASURING AND TESTING |
100 | DF | TEMPERATURE MEASUREMENT (E.G., THERMOMETER) {13} |
163 | DF | .~ By electrical or magnetic heat sensor {13} |
179 | DF | .~.~ By thermoelectric potential generator (e.g., thermocouple) {3} |
180 | .~.~.~ Specimen is part of thermoelectric circuit |