【摘 要】
：
(1) 一只电位器使1kW中波发射机失真度减小一半我局1kW中波发射机出厂时的电声指标为乙级,失真度大到5.8%(100Hz时)。为提高指标到甲级,即失真度小于4%,我们
(1) A potenti
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(1) 一只电位器使1kW中波发射机失真度减小一半我局1kW中波发射机出厂时的电声指标为乙级,失真度大到5.8%(100Hz时)。为提高指标到甲级,即失真度小于4%,我们
(1) A potentiometer reduces the distortion of 1kW medium-wave transmitter by half. The 1kW medium-wave transmitter of our office is rated B at the factory and the distortion is as high as 5.8% (at 100Hz). To improve the index to Grade A, that distortion is less than 4%, we
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