单词 | attenuation |
释义 | attenuation [ǝ´ten·yǝ`wā·shǝn] BOTANY Tapering, sometimes to a long point. ELECTRICITY The exponential decrease with distance in the amplitude of an electrical signal traveling along a very long uniform transmission line, due to conductor and dielectric losses. ENGINEERING A process by which a material is fabricated into a thin, slender configuration, such as forming a fiber from molten glass. MICROBIOLOGY Weakening or reduction of the virulence of a microorganism. PHYSICS The reduction in level of a quantity, such as the intensity of a wave, over an interval of a variable, such as the distance from a source. |
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