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。
2
The axle-angle measuring circuit with AD2S80A is given. The measuring error and the method of increasing the measuring precision are analyzed.
给出了由AD2 S80 A组成的轴角测量电路，分析了测量误差以及提高测量精度的方法。
3
The article expounds the electric circuit of the prototype of SS4 locomotive of 8-axle for freight traffic.