中国铁道学会减速顶委员会主任冷庆同志在开幕式上的讲话（一九九三年十一月十八日）会议经过认真准备，今天在这里召开了。这次“铁路编组站减速顶调速系统运营座谈会”应该说是一次很重要的会议。会议日程三天，是个小型座谈会，１８日开始，有几位同志讲话，然后会议交... Speech of Leng Qing, director of China Railway Society Retarder Committee, at the opening ceremony (November 18, 1993) The meeting was carefully prepared and was held here today. This “railway marshalling yard deceleration top speed system operation forum” should be said that it is a very important meeting. The meeting schedule is three days and is a small forum. Starting from the 18th, a few comrades speak and the meeting is handed over ...