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只要测出？角，就能知道列车的加速度。
If we know the Angle? The acceleration of the train can be calculated.
youdao
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加速开发建设黄河三角洲己成为众望所归、人心所向。
The accelerated development of the Yellow River delta is the popular sentiment.
youdao
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加速开发建设黄河三角洲己成为众望所归、人心所向。
The accelerated development of the Yellow River delta is the popular sentiment.
youdao