苯四酸二酐与芳香二胺反应制得的芳香族聚酰亚胺，具有高耐热应力，用于制造内燃机部件。
An aromatic polyimide made by reacting pyromellitic dianhydride with an aromatic diamine; has high resistance to thermal stresses; used to made components of internal combustion engines.
苯四酸二酐与芳香二胺反应制得的芳香族聚酰亚胺，具有高耐热应力，用于制造内燃机部件。
An aromatic polyimide made by reacting pyromellitic dianhydride with an aromatic diamine; has high resistance to thermal stresses; used to made components of internal combustion engines.
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