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捷克斯洛伐克的一位工程师,找到了一种节能新法。他研制成功了一种专门用来调节街上交通信号灯照明的定时控制装置一“灯光调节控制钟”。这位工程师首先将他的发明在南部城市比尔森进行试验。在适应街上交通运输车辆行车密度的情况下,用这种电子仪器来控制信号灯照明灯光。
An engineer in Czechoslovakia found a new energy-saving law. He developed a kind of timing control device specially designed to adjust the traffic lights on the street, a “light adjustment control clock.” The engineer first experimented with his invention in the southern city of Plzeň. In order to adapt to the traffic density of traffic on the street, the electronic instrument is used to control the signal light.