以下为句子列表：
英文: Some other defects in castings are well-defined cracks and hot tears that develop during solidification, under combination of stress concentration from uneven contraction and the metal's low strength at near-melting temperatures.
中文: 铸件内部的其它一些缺点是，凝固过程中，在不均匀收缩造成的应力集中和接近熔点温度下金属的低强度的综合作用下，出现的清晰裂缝和热撕裂。
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