Final answer:
Thermistors, bimetal snap disks, and filled bulbs play a key role in sensing line temperature for electronic expansion valves.
Explanation:
Thermistors, bimetal snap disks, and filled bulbs are elements used to sense line temperature in electronic expansion valves. Thermistors are resistors whose resistance changes based on temperature, bimetal snap disks utilize thermal expansion properties of materials, and filled bulbs expand with temperature changes, affecting pressure to regulate flow through the valve.
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