关系数据库语言 meaning in English

rdl relational database language
relation database language
relational database language

Tuesdays and saturdays i only workout in the afternoon , i usually do technique work and rdl ' s
周二和周六我只在下午训练，我通常做技术工作和rdl （难道是关系数据库语言？）
Second , fuzzy events regulation base and the way which adopting the mode of fuzzy relation database to actualize active character is presented in this thesis . then , the active fuzzy relation database language is discussed , and the differences between database language and program design language , which describe the radical difference of the active quality between in this database and in the applied program are distinguished
其次，本文探讨了主动模糊关系数据库语言，将数据库语言和程序设计语言作了区别，说明了本数据库的主动性与通常在应用程序中实现的主动性有着根本的不同，并分别给出了模糊数据库语言、模糊规则语言、主动模糊关系数据库程序设计语言的模式，然后通过实例说明了这些语言模式的具体应用。