以下为句子列表：
英文: The studies indicated that the rigidity of the copper billet was enhanced a lot with different pressure and different forms of pressure,and by the obvertion of the microscopic structure,we find that the aluminizing formations had different thickness with
中文: 研究结果表明：对不同压制压力下及不同压制方式的纯铜渗铝后，铜坯的硬度得到很大的提高，对显微组织观察可知，在不同压力下渗铝其渗层厚度明显不同。
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