3.The methods of chrome tannage technology and the application of studing on auxiliary agent were summarized, there were 60 pieces of refe rence documents.
综述了清洁铬鞣艺方法及其助剂的研究与应用,主参考文献60篇.
4.President Zine El Abidine Ben Ali stands erect and unsmiling, sports a helmet of implausibly jet-black hair and wears a long dress-coat, studded with medals.