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attenuate v 弄薄；弄细（at使+tenu+ate→使…..细薄→弄薄）

释义2： attenuate
/ E5tenju:7eIt /

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◙ verb
1. [with obj.] [常作 be attenuated] reduce the force, effect, or value of
• 使减弱；使减少（力量、效果或价值）
 »her intolerance was attenuated by an unexpected liberalism.
  那种意想不到的自由放任行为使她难以忍耐。
  reduce the amplitude of (a signal, electric current, or other oscillation)
• 减弱，减少（信号、电流或振动）
  [no obj.] (of a signal, electric current, or other oscillation) be reduced in amplitude
• （信号、电流振动）减弱
  [usu. as adj. attenuated] reduce the virulence of (a pathogenic organism or vaccine)
• 减弱（病原体或疫苗的）毒性
 »attenuated strains of rabies virus.
  减低了毒性的狂犬病病毒菌种。
  reduce in thickness; make thin
• （使）变稀薄
◙ adjective
1. (rare)reduced in force, effect, or physical thickness
• [罕] （在力量、效果或厚度上）减弱的，减少的♦ attenuation noun1. mid 16th cent.: from Latin attenuat- 'made slender', from the verb attenuare, from ad- 'to' + tenuare 'make thin' (from tenuis 'thin')

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