class b amplifier造句

例句与造句

1. Each stage used a Class B amplifier arrangement of EF8s, special low noise, " aligned-grid " pentodes.
2. Class B amplifiers have a very high efficiency but are impractical for audio work because of high levels of distortion ( See : Crossover distortion ).
3. It's difficult to find class b amplifier in a sentence. 用class b amplifier造句挺难的