relay semiautomatic block的意思|示意
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继电器半自动块
relay semiautomatic block的网络常见释义
继电半自动闭塞 ... all-relay interlocking 继电联锁；继电集中联锁 all-relay semiautomatic block 继电半自动闭塞 alluval deposit 合金钢轨 ...
relay semiautomatic block相关短语
1、 all-relay semiautomatic block 继电半自动闭塞
2、 all-relay semiautomatic block system 继电半自动闭塞