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AP1重轨坯经火焰清理后,在没有承受外力的条件下,有时就产生置放断裂。这个现象冬季较多,夏季较少,见图1。
AP1 heavy rail blanks after flame cleaning, under the conditions of no external force, sometimes produce placement fracture. This phenomenon is more in winter, less in summer, see Figure 1.