In an infinite and everlasting universe, every line of sight would end on the surface of a star. 在一个无限和永恒的宇宙中,没道光线应当终止在星体的表面。
History reaches out like an infinite line, which we only occupy a tiny fraction. 历史伸向无穷象根线,其间我们占有的是很小的一点。
Hilbert problem with unknown parameter function on infinite straight line 无穷直线上含参变未知函数的Hilbert问题
It has a straight line, and there is an infinite number of lines that go through the point and never meet the original line. 有一条直线,上有无数穿过点的线,且永远不和原始的线相交;
Dynamic Analysis to Infinite Beam under a Moving Line Load with Uniform Velocity 匀速运动的线源荷载激励下无限长梁动力分析
A single machine to infinite system in which the SVC is installed in the transmission line is digitally simulated, the results of simulation show that compared with normal PI controller this controller has better damping characteristics and good robust. 对输电线上装设SVC的单机无穷大系统进行了数字仿真。仿真结果表明:在不同工作点,相对于传统的PI控制,该控制器均能更好地平息系统振荡,具有更好的动态性能及适应能力。
Study of the Electrostatics and Power Lines on the System of an Infinite Line Charge and Charged Charge Conductor Cylinder 直线电荷与带电导体圆柱电场和电力线簇研究
A variety of double-layer have been successfully designed and grown by DC magnetron sputtering for the purpose of electromagnetic ( EM) shielding of plastic chassis, based on the shielding efficiency calculation of an infinite shielding area with transmission line model. 通过传输线模型推导出多层无限大平板的屏蔽效能的计算公式,并根据公式设计了双层屏蔽层,通过多靶直流溅射制备了多种金属屏蔽膜。
The active filter acts as an infinite impedance to the external for the fundamental frequency and as a low resistor for harmonic frequencies. The Study of Single-phase-to-earth Fault Line Selection Device Based on Shortly Turning on and off Low Resistor Method Without Impulsion in Ungrounded Neutral System 对外电路而言,在基波频率下有源滤波器被控制为无限大阻抗,在谐波频率下被控制为小电阻。中性点无冲击短时投切低阻的中压电网单相接地故障选线装置的研究
In virtue of the property of infinite integral, the scattered field is split into a singular part and a bounded part, by which the Cauchy type integral equation of the rigid line is obtained. 利用无穷积分的性质,把和界面接触刚性线的散射场分解为奇异部分和有界部分。通过分解后的散射场建立了和界面接触刚性线在SH波作用下的Cauchy型奇异积分方程。
On the basis of field expression in half infinite homogeneous medium space, this paper discusses the basic properties of full region apparent resistivity for data acquired with center loop line transient electromagnetic method and their solving method. 根据半无限均匀介质空间中场的表达式,分析了一维层状介质情况下的中心回线方式瞬变电磁测深法的全区视电阻率定义的基本性质,并讨论了求解方法。
The formulation of Riemann boundary value problems with parametric unknown functions on infinite straight line is proposed. 给出了无穷直线上一类含参变未知函数的Riemann边值问题的提法。
It is proved that the the infinite sum of the absolute convergent series in the Fuzzy real line does not change after rearrangement, so generalize the corresponding result in analysis. 证明了Fuzzy实直线上的绝对收敛的级数经过重排后其和不变。
Status of Infinite Line Contacts Elastohydrodynamic Lubrication Study by Numerical Analysis Methods 数值法研究无限长线接触弹流问题发展状况
The Stability of the Solution of Riemann Boundary Value Problem on Infinite Line 无穷直线上的Riemann边值问题解的稳定性
A simple wind farm connected to infinite bus is simulated and analyzed, which includes small signal disturbance analysis, transient analysis when wind farm starts to be connected, load fluctuates and fault of line in power system is occurred. 基于上述模型,本文对风电场&无穷大系统进行了简单的仿真分析,主要包括小干扰稳定分析,风电场的并网、负荷扰动以及联络线故障时的暂态分析。
Suggestion, development and perfection of Moyer model are described. The methods of experimental determination of Ho ( Ep),β and λ are given. Application of Moyer model for calculation of transverse shielding of point-line sources and infinite uniform line sources are represented. 简述了Moyer模式的提出、发展及完善过程,给出了Moyer模式三参数的实验确定方法,叙述了利用Moyer模式计算类点源及无限均匀线源的屏蔽方法。
This paper gives the probation to the analytical characters of green function of the second boundary value problem in the heat conduct equation on the semi infinite straight line. 本文探讨了半无穷直线上热传导方程第二边值问题的Green函数的分析性质及其在非线性热源反演中的某些应用。
In 2D spatiotemporal image, moving object shows finite line segment and complicated texture of background displays infinite straight line. 在时间空间域里,背景的复杂纹理表现为无限长直线,运动目标则表现为有限长线段。
Without considering the infinite far straight line, the essay is mainly about one kind of classifying judgement ways with the knowledge of matrix and primary alternation, then instruct how to use it with some examples. 本文抛弃无穷远直线,充分运用矩阵、初等变换的知识,给出二次曲线的一种分类判别法。
In order to analyzing the vehicle-track coupling vibration character of infinite length track, a time-varying model of railway tangent track spatial vibration was presented. This paper gives out states, feature and causes of alternately rail side attrition in the straight line intervals of railway. 针对无限长轨道上车辆轨道耦合振动响应特性,建立了铁路直线轨道结构空间振动模型。对铁路直线地段出现的钢轨交替不均匀侧磨的形态、特征以及成因进行了分析。
Based on a simple infinite dimensional electromagnetic system consisting of a linear lossless transmission line in combination with a nonlinear boundary condition, the local map of backward voltage wave is established by using the traveling wave theory. 对于一个由线性无损传输线加非线性边界条件组成的简单无穷维电磁系统,应用行波理论确定了电压反射波的局部映射关系。
In practice, there are several measurement models: Pulse Infinite Line Method, dual-probe heat-pulse measurement theory, single-probe continued heating method. 线热源法在实际应用中有几种测量模型:单探针脉冲加热、双探针持续加热、单探针持续加热。
Secondly, wave propagation and transient response of an infinite functionally graded plate under a point impact load and an annular line impact load are investigated. 研究了无限大功能梯度板分别受到点冲击荷载和环形线冲击荷载作用时波的传播和瞬态响应。