... 自动信号器：robot 自动信号灯：automatic signal lamp 自动信标：unattended beacon ...
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automatic highway crossing signal lamp 自动道口信号灯 ; 详细
automatic c signal lamp 自动信号灯
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The company with advanced technology is known, have been the first overhead valve, turn signal lamp, stained glass, automatic transmission technology.
该公司以技术先进著称，曾首创顶置气门、转向信号灯、染色玻璃、自动变速器等先进技术。
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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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