例句與造句

1. Early devices included the British Walter, a compact single vacuum tube oscillator design operating at 177 MHz ( 1.7 meter wavelength ), and the German J鋑er ( NS-4 ), a two-tube master oscillator power amplifier design at 58.5 and, later, 42 MHz.
2. It's difficult to find master oscillator power amplifier in a sentence. 用master oscillator power amplifier造句挺難的