power signalling

例句：

1. 1. The new power signaling system is expected to improve efficiency significantly.
   新的功率信号系统预计将显著提高效率。
2. 2. The engineer used a power signaling device to ensure the safety of the workers.
   工程师使用一种功率信号设备以确保工人的安全。
3. 3. Power signaling is crucial for maintaining communication and coordination in large-scale projects.
   在大型项目中，功率信号对于保持通信和协调至关重要。