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将火车钢轨方形端头改为斜形端头,使钢轨之间的接缝由与运行方向相垂直的接缝改为斜接缝。斜接缝保证了车轮在钢轨面上运行,避免车轮经过钢轨垂直接缝而产生的震动及其它问题。
Change the square end of the train rail to a bevel end so that the seam between the rails is changed from a seam perpendicular to the running direction to a miter seam. Miter seams ensure that the wheels run on the rail surface, avoiding the vibrations and other problems that occur when the wheels pass through the vertical seams of rails.