traffic signal

Drivers must be on the alert for traffic signals.

驾驶员必须密切注意交通信号。

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

提供的交通信号，使得了色盲症的辨识交通信号。

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

作为交通控制的重要组成部份的交通信号应国际化。