| 摘要 |
PURPOSE: A method for variation of cutting angle of rail is provided to greatly reduce noise caused from contact friction between wheel of train and a rail. CONSTITUTION: The variation method is realized by cutting the rail at an angle of 20degrees and installing the cut rail on a common railway line. As a result, the noise is reduced when a train passes the prepared railway. Additionally, if the rail is shorter than the existing one, it can be greatly reduced the noisy sound, as well as the human labor for installing the rail on the railway line.
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