switch point indicator

例句：

1. 1. The switch point indicator is crucial for ensuring the smooth operation of the system.
   切换点指标对于确保系统顺畅运行至关重要。
2. 2. The engineer used a switch point indicator to detect and fix the fault in the circuit.
   工程师使用切换点指标检测并修复了电路中的故障。
3. 3. The company introduced a new switch point indicator that improved the accuracy of its diagnostic tools.
   该公司引入了一种新的切换点指标，提高了其诊断工具的准确性。