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A new production process of modified PET product was provide.
提供了一种改性聚酯产品的新生产工艺。
youdao
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F any product on which the serial number has been removed, defaced or modified.
任何产品上的序列号已被删除，涂改或修改。
youdao
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F any product on which the serial number has been removed, defaced or modified.
任何产品上的序列号已被删除，涂改或修改。
youdao