英语语法分析

The characterization of the PAP film by infrared spectroscopy suggested that the PAP is a ladder polymer with phenoxazine rings as electroactive sites.

用红外吸收光谱法表征了聚邻氨基酚薄膜，认为该聚合物具有梯形结构，其中吩恶嗪环作为电活性点。