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What effect does smoking have on the movement of mucus in the respiratory tract?)
Pilot Control Device
A manual or automatic apparatus used to start, stop, or regulate the operation of machines via control circuits.
Loss of Power
The condition where electrical power supply to a device, system, or area is interrupted or cut off.
Hand-off-automatic Circuit
A control circuit allowing equipment operation in hand (manual control), off, or automatic modes, depending on the selected setting.
Operator
An operator is a person or device responsible for managing, controlling, or executing the operation of machines, systems, or processes.
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