您要查找的是不是：
- I bought an amplifier yesterday. 我昨天买了一个扩音器。
- underwater amplifier 水下放大器
- This machine has been specially adapted for use underwater. 这机器是为水下使用而特别改装的。
- This machine has been specially adapted for underwater use. 这机器是为水下使用而特别改装的。
- A ship equipped for laying explosive underwater mines. 布雷舰艇装备有布水雷装置的舰艇
- A trademark used for an underwater breathing apparatus. 水肺，水中呼吸器用于水下呼吸装备的一种商标
- A gradual change in the output of a circuit or amplifier. 逐渐改变电路或放大器输出功率的逐渐改变
- Travel Form is no longer useable underwater. 旅行形态不能再用于水下。
- A device used underwater to produce pulses of sound, as for an echo sounder. 声脉冲发送器置于水下产生声脉冲的装置，如回音器中的装置
- Output from the inverting oscillator amplifier. 内部反向振荡放大器的输出。
- Riptide is a strong underwater current. 激潮是海面下一种强大的暗流，
- I am majored in audio frequency amplifier. 我主修音频放大器。
- Yes, including the underwater form. 可以，包括在水下的形态。
- They extract ten million tons of coal each year from underwater mines. 他们每年从水下煤矿中采掘一千万吨煤。
- An underwater ridge or rock shelf. 暗礁水下隆起物或岩石架状物
- REPAIR THE OPEN AMPLIFIER GROUND CIRCUIT. 维修断路的扩大器接地电路。
- An underground or underwater passage. 地道，坑道地下的或水下的通道
- The amplifier exploded in a fountain of sparks. 放大器爆炸，喷射出火星。
- The diver was carrying out an underwater operation. 那个潜水员正在水下作业。
- WHAT IS AN INSTRUMENTATION AMPLIFIER? 什么是仪表放大器?
