| 释义 |
attenuator
at·ten·u·a·tor A0509800 (ə-tĕn′yo͞o-ā′tər)n. A device that attenuates an electrical signal.attenuator (əˈtɛnjʊˌeɪtə) n1. (General Physics) physics any device designed to reduce the power of a wave or electrical signal without distorting it2. a person or thing that attenuatesat•ten•u•a•tor (əˈtɛn yuˌeɪ tər)
n. a device for reducing the amplitude of an electronic signal. [1920–25] Thesaurus| Noun | 1. | attenuator - an electrical device for attenuating the strength of an electrical signalelectrical device - a device that produces or is powered by electricity |
Translationsattenuator
attenuator[ə′ten·yə‚wād·ər] (electronics) An adjustable or fixed transducer for reducing the amplitude of a wave without introducing appreciable distortion. sound attenuatorIn ductwork, a device (usually prefabricated) especially designed to provide much greater sound attenuation than would be provided by an equal length of ductwork; the pressure drop through the device is greater than for an equal length of ductwork.attenuator
at·ten·u·a·tor (ă-ten'yū-ā-tŏr, -tōr), 1. An electrical system of resistors and capacitors used to reduce the strength of electrical signals, as in ultrasonography. 2. The terminator sequence in DNA at which attenuation occurs; located between the operator and the gene for the first protein in an operon. attenuator a regulatory NUCLEOTIDE sequence occurring in the LEADER REGION of an operon (see OPERON MODEL and containing a TRANSCRIPTION stop signal. The attenuator acts as a fine control mechanism for the activity of structural genes, sometimes being operative, sometimes not, depending on conditions in the cell.See ATT
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Words related to attenuatornoun an electrical device for attenuating the strength of an electrical signalRelated Words |