traffic signal

Drivers must be on the alert for traffic signals.

驾驶员必须密切通信号。

The traffic signal lamp of the important composition part controlled as the traffic should internationalize too.

作为通控制的重要组部份的通信号灯也应国际化。

The traffic signal lamp provided by the invention ensures that people with achromatopsia can also identify the traffic signals.

提供的通信号灯，使得了色盲症的人也能辨识通信号。