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| normal casting powder (Thornton et al. found that the use of an exothermic starter powder in conjunction with the normal casting powder substantially reduces the severity of longitudinal cracks. 桑顿等人发现将发热型开浇用保护渣与普通连铸保护渣联合使用，会明显减轻纵裂纹的严重程度。) | |||
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