gun-feed reverberator

例句：

1. 1. The gun-feed reverberator is a device thatuses the sound of a gun to createan echoing effect.
   枪口回响器是一种利用枪声产生回声效果的设备。
2. 2.In this experiment, we used a gun-feed reverberator to simulate thesound of a gunshot.
   在这个实验中，我们使用了一个枪口回响器来模拟枪声的效果。
3. 3. The gun-feed reverberator was used as atool for testing the accuracy of the gunpowder.
   枪口回响器被用作测试火药准确性的工具。