The dispatch instruction can be sent and received by the staff of the marshalling station so as to improve the efficient management of the marshalling station by the _______________________. 收发调度指令由编组站的工作人员完成以此提升_________对编组站的高效管理。
A、marshalling station 编组站
B、shunting center 调车中心
C、dispatching command center 调度指挥中心