primary fact

Fact can be divided into primary fact, indirect fact and auxiliary fact.

事实有主要事实 、 间接事实和辅助事实之分.

This paper probes into the structure model of Intelligent Decision Support System ( IDSS) based on RDBMS, presents the design strategy of three primary knowledge base ( fact base, model base, rule base) and the algorithm of prob-lem resolving.

文章研究了基于RDBMS的智能决策支持系统（IDSS）的结构模型，提出了IDSS三种基本知识库（事实库，模型库，规则库）的设计方案和问题求解算法。

This is not reasonable. In fact, one-class SVM is, in analogy, an open-loop system. The criteria setting have to initiate from the primary problem for one-class SVM since there is no feedback information.

文中指出，单类支持向量机的模型选择问题，可类比于一个开环系统，由于缺乏反馈信息，所以模型选择的切入点只能从优化主问题入手。

In fact, thin clients are expected to be the primary method of accessing the Internet for a majority of people in the world within the next few years.

事实上，在不久的未来，对于大部分人来说，瘦客户机将成为访问Internet的主要手段。

Some of these career jugglers perform tasks for their secondary job with the permission of their boss at their primary job, but most hide the fact from their employers. For example ：

有些兼职族是在得到老板允许后将兼职工作带到办公场所来做的，不过大部分都是私下瞒着老板进行的。