针对化工不稳定时滞过程，提出一种两自由度控制结构。
This paper presents a kind of non-spherical two-degree-of-freedom motor.
本文中介绍了利用定量反馈理论设计的PID控制器，并对两自由度控制结构系统进行了数值仿真，验证了控制器的有效性。
This paper presents PID controller using QFT and makes simulation of numerical value fabric system of two dimensional control, proves validity of controller.
空间交会对接涉及到两个航天器同时要进行多达12个自由度的轨道和姿态控制问题。
The rendezvous and docking (RVD) between two spacecrafts in space involves both orbit control and attitude control with up to 12 degrees of freedom.
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