unclassified document meaning in English

非保密性文件, 公开文件[文献
非机密文件

Not using envelopes for unclassified documents
传送非限阅文件时不使用信封
Re - using envelopes , using transit envelopes or not using envelopes for unclassified documents
重用信封、使用可多次使用的信封，或不用信封传递非机密文件
Both theories are combined to classify the documents by unsupervised learning and discuss the method in which new rules , applied to new unclassified documents , can be formed after classifying the training documents
本文利用文档聚类和粗糙集约简相结合的方法，对训练文档进行分类，形成规则后对新加入的未分类文档进行归类。