... modern logistics system 现代物流 longitudinal corner crack 角部纵裂 amides 酰胺类 ...
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角部纵向裂纹 longitudinal corner crack
经过几个月的实验，小方坯角部纵裂废品基本消失，取得了良好的冶金效果。
The longitudinal corner crack scrap of Billets disappeared almostly after four and half months test. Yielded the good metallurgical results.
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