tap position indicator

例句：

1. 1. The device has a built-in touch position indicator that makes it easy to find the right spot.
   这个设备内置了触摸位置指示器，使得找到正确位置变得容易。
2. 2.The new software update includes a tap position indicator that helps users quickly locate and interact with important features.
   新的软件更新包括一个触摸位置指示器，帮助用户快速定位并与重要功能互动。
3. 3. The engineer used a tap position indicator to mark the exact location of the fault in the circuit board.
   工程师使用触摸位置指示器在电路板上精确标记出故障的位置。