请问一下,DR 411在练习关卡时在牵引部缓解制动无法联动车尾的制动,需单独移动至车尾解除制动状态后才可启动车辆是此车辆的特性吗?对该车辆不太了解 I’d like to ask about the DR 411: when operating in "practice mode," is...
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