The developing course and present situation of PET staple fiber indust ry in China were outlined. 简述了我国涤纶短纤维技术的发展过程及现状。
First, the article summarily looks back on the developing course and current situation of American chain drugstores so as to use it as an example. 文章首先概括的对美国医药连锁的发展历程及现状进行了回顾，希望能起到他山之石的作用。
