What lean is that the automatic command system of traffic signal lamp.

靠的是交通信号灯的自动指挥系统.

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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灯也应国际化.

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It was the automatic command system of the traffic signal lamp that depended on.

靠的就是交通信号灯的自动指挥系统.

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