该装置在非连接状态下使防尘门自动关闭，防止异物进入列车制动管系影响行车安全；
The utility model makes the dustproof gate close automatically under the condition of non-connection to prevent foreign bodies from entering the train brake pipe and affecting the safety of running.
该装置在非连接状态下使防尘门自动关闭，防止异物进入列车制动管系影响行车安全；
The utility model makes the dustproof gate close automatically under the condition of non-connection to prevent foreign bodies from entering the train brake pipe and affecting the safety of running.
应用推荐