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And besides, the paper discusses briefly the PID or PI control, SIMULINK simulation, ItAE integral rule, AC motor vector control model and

除此之外，还就PID控制，SIMULINK仿真，ItAE积分准则，交流矢量电机控制模型等涉及到PID参数优化等问题进行简要的讨论。

With convincing data the intercomparison of the performances on PID control,Fuzzy control and P-Fuzzy-PI control is given.

锅炉汽包水位控制系统由汽包、水位变送器、控制器和给水调节阀组成，如图1所示。

The principle of controller PI - BLEND and realization of interlock were described in details.

主要介绍了腈纶生产中原液进料系统的控制方案，详细叙述了控制器PI-BLEND的原理和联锁的实现。

For example, you are probably familiar with the number called "pi". This irrational number is so important that we give it a name and a special symbol!

例如，你可能对圆周率"Pi"这个数很熟悉，这个无理数如此重要，以至于我们给它命名，而且用一个特殊符号表示它。

The software of this system written in C programming language mainly, follow the principles of modular design, including the speed measurement, speed PWM drive, speed PI-conditioning, speed display, keyboard input, and other procedures module. The code has easy maintenance and great probability.

系统软件主要使用C语言编写，遵循模块化设计的原则，编写了转速的测量、转速的PWM驱动、转速的PI调节、转速的显示、键盘输入等程序模块，程序代码具有良好的易维护性和可移植性。

The software of this system written in C programming language mainly, follow the principles of modular design, including the speed measurement, speed PWM drive, speed PI-conditioning, speed display, keyboard input, and other procedures module.

系统软件主要使用C语言编写，遵循模块化的原则，编写了转速的测量、转速的PWM驱动、转速的PI调节、转速的显示、键盘输入等程序模块，程序代码具有良好的易维护性和可移植性。

Anyone who has ever studied geometry knows the importance of the quantity known as "pi".

任何学过几何学的人都知道圆周率这个数值的重要性。

The magnitude of opened angle at a point pi in the contour can be easily calculated by the law of cosines, and its local extreme correspond to the sharper changes of the contour of the mode.

其轮廓上点p处的张角可用余弦定理很方便地求出，而张角的极值点则对应于轮廓急剧变化的地方。

Namely specialized devotes to east wind brand intermediate and senior Pi Ka, SUV and MPV and extends the commodity enterprise's development, simultaneously as daily production brand LCV commodity line at Chinese enterprise's main acting.

即专业致力于东风品牌中高级皮卡、SUV和MPV及其延伸商品事业的发展，同时作为日产品牌LCV商品线在中国事业的主要担当者。

In February 2004, another leftwing activist Fang Chuang Pi passed away in Thailand after being denied re-entry into Singapore.

2004年2月，另一名左翼分子方壮壁在泰国逝世，他生前被新加坡政府禁止入境。

Now he worked in ajoint venture.

现在他在一家合资企业工作。

More troops in Afghanistan won't change any of the foregoing.

更多的在阿富汗的军队也不会改变之前的状况。