folded chain meaning in Chinese

折叠分子链
折叠链
褶皱山脉

Applications of infrared spectroscopy in the structural study of poly ( ethylene terephthalate ) ( pet ) fibers in recent years have been reviewed . some techniques of sample preparation for infrared measurement have been introduced . characterizations and applications of the structural parameters , such as conformers contents , chain orientation , folded chain contents , and the relationship between these parameters and yarn properties haven been summarized
回顾了近年来红外光谱在聚对苯二甲酸乙二醇酯( pet )纤维结构研究中的应用，介绍了纤维制样技术，归纳了构象含量、取向、折叠链含量等结构参数的表征方法及其应用，以及这些结构参数与纤维性能间的联系。