Here outer equipment including weather detector, car detector, information board, speed-limited board.

外场设备主要有气象检测器，车辆检测器，情报板，限速板。

youdao

Here outer equipment including weather detector, car detector, information board, speed-limited board.

外场设备主要有气象检测器，车辆检测器，情报板，限速板。

youdao