This paper introduced a plan to transform 64D semi-automatic section block into one with Axle Counter . And, it also illustrated relevant relays and its circuit.
介绍了6 4D半自动闭塞改造为计轴自动站间闭塞的一种方案，对有关继电器及其电路进行了说明。
This section examines each automatic maintenance policy.
本节将讨论各种自动维护策略。
The complimentary technology of automatic client reroute is discussed in a later section.
自动化客户机重路由的互补技术将在后面的一个小节中讨论。
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