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Terms for subject Communications containing 单向 | all forms | in specified order only
ChineseEnglish
单向减速顶unidirectional dowty retarder
单向无线通信one-way radio communication
单向电路波道,通道one-way channel
单向编组场one-way classification yard
单向自动闭塞unidirectional running automatic block
单向自动闭塞single-direction automatic block
单向行车unidirectional operation