double track all-relay semi-automatic block system

词典收录

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英式发音

单词级别

高级

英文单词：	double track all-relay semi-automatic block system
中文翻译：	双线继电半自动闭塞

词汇解析

双线继电半自动闭塞

double track all-relay semi-automatic block system 的常见用法：

1

double track all-relay semi-automatic block system of

2

the double track all-relay semi-automatic block system

3

to double track all-relay semi-automatic block system

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