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目次·学术探讨·关于简易驼峰调车场减速顶调速系统设计的新思考钟 楠 孙士臣 ( 1— 1)…………………绥化站驼峰改造及站区规划方案探讨夏维毅 ( 1— 5 )……………………………………………缓行器 +微机控制可控顶调速制式在榆次站的应用徐子湘 ( 1— 8)……………………?
(1) ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... ................................................... Retarder + Microcomputer Controllable Top Speed Control System at Yuci Station Xizhi Xu (1- 8) ........................?