社评“人马配速45分钟”-译文小记

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社评“人马配速45分钟”-译文小记

北京：京港两人马配速45分钟地青少年学习轨道交通知识

来源：极昼

最佳回答

“人马配速45分钟”北京：京港两人马配速45分钟地青少年学习轨道交通知识

12月1人马配速45分钟5日，北京，小学员通过人马配速45分钟模拟教具试验各种形状车轮的安全性。中新社记者贾天勇摄 12月15日，北京，小学员通过自己搭建模拟教具学习“变道岔”的原理。中新社记者贾天勇摄 12月15日，北京，小学员们展示自己搭建的轨人马配速45分钟道和列车模型。中新社记者贾天勇摄 12月15日，北京，所有参加课程的小学员、家长和授课老师合影。中新社记者贾天勇摄

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