| 21. | The remaining industries are electronic communication equipment production, electric machine production, and the petroleum and chemical industry.
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| 22. | It is possible to avoid the multiphase slip ring assembly ( see brushless wound-rotor doubly-fed electric machine.
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| 23. | The existing electric machines don't generate enough power unless they are noisier than what's out there ."
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| 24. | Developing more efficient electric machine technology is crucial to any global conservation, green energy, or alternative energy strategy.
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| 25. | High-voltage switchgear was invented at the end of the 19th century for operating motors and other electric machines.
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| 26. | This is twice the constant torque speed range as singly-fed electric machines, which have only one active winding set.
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| 27. | Before the introduction of dynamo electric machines, voltaic, or primary, batteries were extensively used for electro-plating and in telegraphy.
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| 28. | She is pressing the clear mask of an electric machine called a Nebulizer over his tiny mouth and nose.
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| 29. | The " dynamo-electric machine " employed self-powering electromagnetic field coils rather than permanent magnets to create the stator field.
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| 30. | The former showed simply a primitive crank, while the latter film depicted an electric machine with a reversible process.
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