... 铁路专用线道口通告设备 crossing stintoing signis;highway level crossingstintoing device 道口控制器 crossing controller 道口栏木 crossing filter;cross filter into groffere crossing ..
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短语
双信道端口控制器
DCPC DualChannelPortController
多信道接口控制器
multichannel interface controller MCIC
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