noise level indicator

例句：

1. 1.The noise level indicator on the control panelshows the current noise level in the room.
   控制面板上的噪声水平指示器显示了房间当前的噪声水平。
2. 2. The noise level indicatoris used to measure the amount of noisein a particular area.
   噪声水平指示器用于测量特定区域的噪声量。
3. 3. The noiselevel indicator helps us to understand how muchnoise our neighbors are causing.
   噪声水平指示器帮助我们了解邻居们造成的噪声有多大。