The invention relates to the field of medical polymer material, in particular to a PH sensitive and biologically degradable polymer, the preparation method and the function thereof.

本发明涉及医药用高分子材料领域，具体涉及一种pH敏感、并可生物降解的共聚物及其制备方法和用途。

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To investigate whether acid reflux is involved at all, doctors can do a 24-hour pH test, inserting an acid-sensitive probe through the patient's nose into the esophagus, where it records any episodes of reflux.

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