device message handler

例句：

1. 1. The devicemessage handler is responsible for managing the communicationbetween the device and the server.
   设备消息处理器负责管理设备与服务器之间的通信。
2. 2. Thedevice message handler is designed to handle largeamounts of data efficiently.
   设备消息处理器被设计用来高效地处理大量数据。
3. 3. The devicemessage handler is crucial for ensuring smooth operationof the system.
   设备消息处理器对于确保系统顺畅运行至关重要。