什么是纵列式区段站 longitudinal arrangement district station; 纵列式区段站 longitudinal arrangement district station名词解释定义是什么?

名词解释什么是横列式区段站 paralled arrangement district station; 横列式区段站 paralled arrangement district station名词解释定义是什么?

名词解释什么是有解编作业区段站 the district station with marshalling operation for break–up and make-up of train; 有解编作业区段站 the district station with marshalling operation for break–up and make-up of train名词解释定义是什么?

名词解释什么是无解编作业区段站 the district station without marshalling operation for break-up and make-up of train; 无解编作业区段站 the district station without marshalling operation for break-up and make-up of train名词解释定义是什么?

名词解释什么是避难线 refuge siding; 避难线 refuge siding名词解释定义是什么?

名词解释什么是安全线 catch siding; 安全线 catch siding名词解释定义是什么?