The vibration of roadbed and rail is key to the safety of the running train.
路基与铁轨的振动问题是铁道保障行车质量的关键问题.
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Its formulation development and the platform test as well as the road test are presented.
介绍了多级四代油的配方研制、发动机台架评定及行车试验结果.
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What you would actually see in relativity land is a bike that appeared to be rotated.
你在相对论国度实际上会看到的应该是自行车看起来像被旋转过的.
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All morning, the world's top cyclists have been reconnoitring the course.
整整一个上午,世界一流的自行车选手都在勘察赛道。
朗文当代高级英语词典 第6版
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