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Terms containing 双向自动闭塞 | all forms | in specified order only
SubjectChineseEnglish
commun., railw.双向自动闭塞double-direction automatic block
tech.双向自动闭塞double direction automatic block
tech.双向自动闭塞号志automatic block signal in both directions
railw.双向运行自动闭塞double-direction automatic block
tech.双向运行自动闭塞【铁】double direction automatic block
tech.双向运行自动闭塞【铁】automatic block with double direction running