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A technician and homeowner discuss heat pump maintenance, referencing a tablet near the unit.
Refueling the car at a gas station fuel pump. Man driver hand refilling and pumping gasoline oil the car with fuel at he refuel station. Car refueling on petrol station. Fuel pump at station
Professional Asian man engineer in safety uniform working on digital tablet at outdoor construction site rooftop. Industrial technician worker maintenance checking building exterior air HVAC systems.

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