Englishfor English speakers
regulator
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noun
any of various controls or devices for regulating or controlling fluid flow, pressure, temperature, etc
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noun
an official responsible for control and supervision of a particular activity or area of public interest
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noun
(= governor)
a control that maintains a steady speed in a machine (as by controlling the supply of fuel)
device
Noun
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A device is a small machine or tool.
She has a device in her kitchen for cutting garlic.
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A device is a machine or part attached to a computer, such as a keyboard, mouse, printer etc.
The mouse is an important device for using the computer.
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A device is a clever way of doing something.
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A device is a logo.