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low frequency |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.03 sec. |
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An electromagnetic wave that vibrates in the range from 30 to 300,000 Hertz. |
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? Mentioned in | ? References in periodicals archive | |
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TENS then was delivered at either a low frequency (4 Hz) or a high frequency (100 Hz); all other parameters were kept constant, as follows: 100-micro-second pulse duration, asymmetrical biphasic square wave, 20-minute duration, and sensory amplitude. Used in gas, oil and low frequency induction furnaces. At present, there are few quartz crystal units on the market that meet the twin demands of compact size and support for low frequency. |
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low frequency
