系统发生

The expression for short-circuit electrodynamic force of rectangular bus bars on the basis of the calculation of three-phase symmetry short-circuit current was fi.

本文首先根据系统发生三相对称短路时的短路电流，给出了三相矩形母线短路电动力的解析表达式。

Maximum electrodynamic power and the impulse-current of a short cicuit were analyzed and calculated by using phasor methods, when three phases in this symmetric power system happened to be shorted.

bstract 用相量方法分析和计算了三相对称电力系统发生三相短路时的短路冲击电流和最大电动力，给出了动稳定度校验条件。

With the development of the new media technology, emergencies reporting sources of information systems have been changed.

随着新媒体技术的发展，突发事件报道的信息来源系统发生大的改变。

In animals, mitochondrial DNA is generally a 15-22 kb circular genome containing 37 genes: 13 protein-coding genes, two rRNA genes, and 22 tRNA genes, as well as a control region. All 37 genes are arranged in the same relative order almost in all vertebrate species from teleost fishes to eutherian mammals. In recent years, mtDNA has been widely used as a useful marker system in numerous phylogenetic analyses in vertebrate relationships.

脊椎动物线粒体DNA是一个环形结构，长度约为15-22kb.mtDNA呈母系遗传，具有相对保守性，已被广泛应用于分析动物个体鉴别和动物类群间的系统发生关系。

This is possible to be an important cause for degradation of most Chinese fir ecosystems.

这可能是大多数杉木人工林生态系统发生严重退化的一个重要原因。

And fuzziness turns out to be the nature of language.

在言语交际中，语言的模糊性在认知系统发生作用，形成一种制约言语活动的机制———模糊机制。

In this thesis,the voltage stability boundary is the combined boundary which correspond to Saddle-node bifurcations and Hopf bifurcations.The closest Hopf bifurcation point is found through the proposed iterative method under the assumption that the Hopf hypersurface is continuous and convex.

因此在本论文中，在多维参数空间下，将稳定边界推广到鞍点和Hopf分岔点构成的混合稳定边界，探索性寻求Hopf分岔超平面的法向量，采用迭代算法求取系统发生最近振荡型电压失稳的负荷增长方式。

In order to pump water for the people under the uncommon condition of the frequency invertor ,this systerm has designed manual-controller.

为了防止自动系统发生故障，本设计做了手动控制器。关键词：恒压变频供水；PLC；变频器

The simulation demonstrated that, the total risk value of cascading failure grows along with load factor growth.

仿真结果显示，系统发生连锁故障的总风险值随负荷率的增长而增长。

Areas of its research include evolutionary theory, macroevolution, vertebrate evolution, phylogenetics, functional morphology of vertebrate skeletons and dentitions, and biomechanics of locomotion and mastication.

其研究领域包括进化原理、宏观进化、脊椎动物进化、系统发生学、脊椎动物骨骼和牙列的功能形态学、运动和咀嚼的生物力学等。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。