attenuate or reduce in vigor, strength, or validity by polishing or purifying. 在精力力量或有效性方面通过打磨或净化来削弱或减少。
a coil of low resistance and high inductance used in electrical circuits to pass direct current and attenuate alternating current. 在电路中让直流电通过削弱交流电的低电阻高感应系数的线圈。