查询词典 pi

When he pi cked up the kitten, he was utterly s hocked to find that one of his hind leg was missing!

当他拾起小猫，他非常震惊的发现小猫的一只后脚不见了。

Pi County and its administrative region are entitled to produce the product of Pixian Douban, the condiment, which is produced according to the traditional brewing technology, using chili and horsebean as the main materials, salt and wheat powder as the supplementary materials.

郫县豆瓣属四川省成都市郫县现辖行政区域内生产，以鲜红辣椒、蚕豆为主要原料，食用盐、小麦粉为辅料，按传统工艺酿制而成的调味品。

In order to improve the dynamic characteristics of above motor drive, a nonlinear PI type speed controller based on hyperbolic tangent function was presented, and applied in the indirect vector control of an induction motor.

过去30年中，模糊控制技术在非线性系统的建模和控制领域中获得了深入研究和广泛应用[1]，研究发现，它比传统线性PI控制技术在感应电动机矢量控制系统中有更优越的动态控制性能，但也存在要求较多的实际经验、实现代价较高和高频抖振等不足之处[2]。

Comparison of the experimental results with those reported for SiH/sub 3/CN and GeH/sub 3/CN, 4.7 and 5.0MHz, we propose that, in stead of hyperconjugation, the migration of CN .pi.

比较实验结果与SiH/sub 3/CN的4.7MHz和GeH/sub 3/CN的5.0MHz，我们推论CN的。pi。

In order to improve these problems,a simple frequency-independent mathematic modeling method by using polar coordinate is developed in this paper,and then the developed model is compared with widely used PI hysterics model.

针对当期望输出与频率无关时的压电陶瓷的迟滞非线性问题，提出了一种基于极坐标的数学建模方法，同时给出了通用的PI迟滞模型，并对两种模型进行了比较。

For applications requiring a wide bagging capability, the AB 180 OneStep integrates the successful Autobag AB 180 Wide Bagger and PI 412c Imprinter platforms to provide an inline, 1:1 'Print-n-Pack' system.

对于需要广泛装袋能力，是AB 180 OneStep整合成功Autobag抗体180宽巴格尔和PI 412c印刷机平台，提供一个嵌入式，1：1'打印丁基包'系统。

In conclusion, the histological features in time-zero biopsies are related with the incurrence of ACR, BC and PI post-LT.

可见供肝术中零时相活检组织学特征与术后ACR、BC和PI的发生相关。

Pi, expressed as an infinite series and an infinite product.

丕表示，作为一个无穷级数和无穷乘积。

The design method of PID controller based on pole-assignment is proposed in this paper. The simulations indicate that this PID controlled inverter provides nice characteristics. A method of PI controller combined with instantaneous differential voltage is also proposed, which is equivalent to PID control in essence and can be seen as a simplified dual-loop form. Accordingly it is a simple but effective adjustment.

本文研究了基于极点配置的PID控制器的设计方法，仿真结果显示这种PID控制器性能优越，同时还提出一种PI调节器结合电压微分反馈的调节方式，并指出这种调节方式和PID调节其实是等效的，而且是一种简化的双环形式，因此是一种简单而有效的调节方式。

In this thesis, the design scheme of a DSP-controlled inverter applied in mobile generator is presented at the beginning and then the design method of control system is mainly discussed. Equivalent output impedance model of instantaneous voltage and current closed-loop controlled inverter is established on the foundation mentioned above. How the values of LC filter, parameters of PI regulator and feedback coefficient etc. affect the external characteristic of inverter is analyzed in detail. Non-linear factor of inverter are also discussed and corresponding solutions are put forward.

本文首先给出了移动发电机DSP控制逆变模块的设计方案，着重讨论了控制系统的设计方法，在此基础上建立了电压电流瞬时值双闭环控制的逆变模块等效输出阻抗模型，对滤波器LC值、PI调节器参数和反馈系数等各项因素对逆变模块输出外特性的影响进行了详细分析，并探讨了逆变模块中非线性因素对输出波形的影响，提出了相应的解决方案。

But Gilgamesh, the epic poem from Ancient Mesopotamia that is held to be among the earliest of humanity's "literary" writings, is perfectly accessible to an audience of today.

但是从古老的米索不达米亚流传下来的吉尔伽美什史诗堪比为最早的"文学"作品之一，而且完全可以进入今天观众的心中。

Derv generation set is the important equipment in platform of marine artesian well.

梗概： 柴油发电机组是海洋钻井平台中的重要设备。