求毕业论文摘要外文准确翻译，如下：PET瓶级聚酯切片的质量主要由基础切片的配方、质量性能和固相缩聚增粘

PET of polyester chip level of quality mainly by the foundation and the formulation of the quality performance, slice and solid-phase polycondensation viscous process of the relevant. Discusses the level of polyester chip production process, quality indicators, and the influence of the product quality and the processing use of performance factors are analysed, research, and put forward the improvement of the quality of solutions. In addition, it introduces the application of it: as for mineral water, carbonated soft drinks, hot filling drinks, beer, etc filling.