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Book Description paperback. Condition: New. Paperback. Pub Date: 2020-08-01 Language: Chinese Publisher: Beijing Jiaotong University Press Railway Signal and Communication Equipment This course is based on teaching. learning. do integration. so that the railway operation management professional students Try to shorten the time directly on the job. combined with the difference between small high-vocational students. and accept weakness. we are integrated . Seller Inventory # NR029476