本文对用分组法求积分因子做了一些改进；从而使一类微分方程的积分因子，主要通过积分的运算就可以得到。
An improvement was made in grouping to find the integrating factors, so that those for some differential equations will be worked out mainly by integration.
自抗绕控制器由三部分组成：跟踪微分器、扩张状态观测器和非线性状态误差反馈控制律。
The auto-disturbance rejection controller is composed of three parts: tracking-differentiator, extended state observer and nonlinear state error feedback control law.
提出了一种新的最优模糊pid控制器，它由两部分组成，即在线模糊推理机构和带有不完全微分的常规pid控制器。
A new kind of optimal fuzzy PID controller is proposed, which is composed of an on_line fuzzy inference mechanism and a conventional PID controller with incomplete derivation.
提出了一种新的最优模糊pid控制器，它由两部分组成，即在线模糊推理机构和带有不完全微分的常规pid控制器。
A new kind of optimal fuzzy PID controller is proposed, which is composed of an on_line fuzzy inference mechanism and a conventional PID controller with incomplete derivation.
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