microwave solid state maser

例句：

1. 1. The new microwave solid-state magnetron has greatly improved the efficiency of our microwave oven.
   新型微波固体状态磁控管大大提高了我们微波炉的效率。
2. 2. This microwave solid-state oscillator is used in many applications, such as wireless communication andradar systems.
   这种微波固体状态振荡器在许多应用中都有使用，如无线通信和雷达系统。
3. 3. The microwave solid-state amplifier is essential for transmitting high-power signals over long distances.
   微波固体状态放大器对于远距离传输高功率信号至关重要。