unified system

• 统一系统

unified system的用法和样例：

例句

1. The unified electromechanical state-space equations of a simple power system are formulated to study the subsynchronous resonance in the power system in this paper.
   通过建立简单电力系统的机电统一系统状态空间方程，采用特征根分析法对系统中的次同步谐振进行了分析。