| 21. | I have eight home entertainment devices that were sold with remote control units.
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| 22. | The screw is used to retain a spring on the rudder control unit.
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| 23. | Barrett also has a device known as an Environmental Control Unit.
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| 24. | This device was the propeller governor, or a propeller control unit.
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| 25. | Though the Core provides environmental control units for heating / cooling.
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| 26. | The system consists of a laser projection unit and guidance and control units.
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| 27. | Engine control units first appeared in cars in the late 1970s.
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| 28. | The gearbox control unit also dialogues with the engine control unit.
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| 29. | Troops from other units were deployed here for border control units.
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| 30. | This procedure is commonly referred to as engine or electronic control unit tuning.
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