查询词典 pi

Then the hardware and software structure of speed controller based on MC56F8013 were showed.

对控制系统建模和积分分离PI算法进行了详细的分析。

But now only the Pi-pa in my arms is accompanying me to the distant desert area, while the song-singing and dancing activities in the palace will no longer involve me!

而现在却只有怀中的琵琶伴我走向那蛮荒的漠北，长安城中的快乐的歌舞中再也不会有我的身影了！

PI: private investigator, also known as a soft-shoe

私家侦探：私人秘密调查者，也叫做&soft-shoe&

LDH in culture fluid, SOD, XOD, free calcium in L-6TG cell and mitochchondral respiration were evaluated in each group; apoptosis was detected by flow cytometer with PI staining method and agarose gel electrophoresis; the immuneohistochemical method was used to determine the expression of bcl-2 and Caspase-3 ; the morphoiogic changes were observed with microscope.

将培养的L-6TG大鼠肌母细胞随机分为3组：①正常对照组，②缺血再灌注组（1R组），③缺血预处理组，观测了培养上清中LDH、细胞内SOD、XOD、Ca(上标 2+)含量的变化；采用MTT法检测线粒体的功能；利用流式细胞仪和细胞DNA电泳结果检测细胞凋亡情况；采用免疫组织化学的方法检测bcl-2及Caspase-3的蛋白表达情况，结合自动图像分析系统对其结果进行定量分析；在光镜下观察细胞的形态学改变。

This paper aims at the design, implementation and evaluation of an industrial brushless servomotor drive. The proportional-plus-integral speed control with gains tuned by an extension of the frequency-zone method and anti-windup PI speed control based on self-conditioning techniques are studied. The parameters of speed performance criteria, control loop bandwidth, per normal inertia, and noise sensitivity are employed to evaluate the performance of the drive.

本文针对工业用无刷伺服马达驱动器进行设计与制作，延伸频率区域法分别设计比例积分控制之增益值，以自我条件技术完成比例积分速度控制之反卷起设计，并依据速度性能准则之参数，如控制回路频宽、惯量标么值、杂讯灵敏度等，进行驱动器之性能评估。

In ancient texts, this scent bag has the unique name of "Pi-wen"(Plague-Warding), and is able to protect against many known and unknown diseases.

在欧洲中世纪瘟疫和霍乱盛行的时代，也有很多人在街上燃烧乳香灯火，在家中点燃精油制成的蜡烛，来试图遏阻疾病的扩散。

PI usually have bulky backbone structures which creating less intermingling with silica, so there were phase separation on micrometer scale occurred in the hybrids.

分析了材料的分子组成和聚集态结构与透明性的关系，详细探讨了SiO〓含量、偶联剂用量、羟侧基密度等因素对薄膜透明性的影响。

Root cutting at PI markedly influenced chlorophyll content of third leaf.

穗分化期切根对叶绿素含量的影响以倒3叶最显著。

To solve the above problems, a novel resonance injection type hybrid active power filter is presented, it allows the energy exchange between the DC-side capacitor and grid, DC-side voltage will be stabilized after the proposed control method base on the regulation of reactive current is adapted. On the other hand, a new current control method is proposed which is based on the control of error between injection current and harmonic current compensated by passive power filter using recursive PI.

在此基础上结合提出的基于基波无功电流闭环调节的直流侧电压控制方法，保证了直流侧电压的稳定；提出了采用递推积分将无源滤波器作用后电网谐波电流与注入支路补偿电流进行闭环比较控制以获得参考电流的方法，减小了误差，提高了系统的控制精度。

Ms. Corum is the chairman of the newly opened Central China Chapter of the American Chamber of Commerce. She says the group is pi one ering the vast region for American businesses, striving to create a more comfortable environment.

詹妮是刚成立的中美商会华中分会(Central China Chapter of the American Chamber of Commerce)的主席，她说该组织正在推动该区域的中美商业合作，力求创造一个更良好的投资环境。

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援，我们正徵召国家所有各种的力量：我们的外交及发展，我们的经济力量与道德劝说，所以你们与其他军人不须要孤独地负起国家安全的责任。