However, NEC has developed a new harmonically tunedamplifier which achieves 45% efficiency on otherwise standard components.
但是NEC已经开发出了一种新的谐波调谐放大器，可以从其它方面使这些标准设备的效能增强45%。
2
A kind of transducer with novel construction, the stagger-tuned wide-band transducer has been developed based on the principle of the "stagger-tunedAmplifier".
我们应用电子技术中“参差调谐放大器”的原理，研制了一种结构新型的参差宽带换能器。
3
As the amplifiertuned load circuit, they are able to select the base component cosine pulse to obtain undistorted amplification signal output, so this amp is also known as tuned power amplifier.