英语语法分析

HALS are experimentally used in PVC films in this study. It is shown that thermostabilization and photostabilization functions of HALS are similar to those of benzophenone in PVC.

将受阻胺光稳定剂试用于PVC薄膜，结果表明，该光稳定剂用于PVC中，其光、热稳定效果与二苯甲酮类紫外光稳定剂相近。