1) first approximation
首次近似
1.
By using the methods of root-analysis for the characteristic equation and first approximation etc, this paper provides criterions of the asymptotic stability for the zero solution of the above meutioued delay difference equations.
运用特征根法及首次近似法等方法得到了上述两类方程零解渐近稳定的判别准则。
2) first approximation
首近似值
3) leading-term approximation
首项近似
4) first-order approximation method
一次近似
1.
Based on the first-order approximation method(FAM),a non-Cartesian variables and a Cartesian variable s and a Cartesian u_2,which denote the arc-length stretch and the transverse displacement respectively,are employed to describe the deformation of the beam.
基于一次近似理论,采用弧坐标分量和Cartesian坐标分量共同描述柔性梁的变形场,并采用Green应变张量描述应变能,用Hamilton原理建立系统动力学方程,揭示产生动力刚化现象的力学本质。
5) quadratic approximation
二次近似
1.
Based on the quadratic approximation of the stability region boundary,this paper proposes a transient voltage stability margin index,and analyzes the transient voltage stability of a one-machine and one-load system including an electromechanical transient model of induction motor.
基于稳定域边界二次近似,提出了暂态电压稳定裕度指标,并分析了计及感应电动机机电暂态过程的单负荷无穷大系统的暂态电压稳定性。
2.
This paper presents a new transient stability index based on the implicit expression for the stability region boundary and an approximation of the proposed index based on the quadratic approximation of the stability region.
基于故障后电力系统稳定域边界的隐式方程,提出了隐式的暂态稳定指标,并利用稳定域的二次近似方法给出了该暂态稳定指标的一个近似估计。
3.
The CCT is determined by the crossing point of the quadratic approximation surface and the continuous faulted trajectory.
基于故障后电力系统稳定域边界的二次近似来估计临界切除时间。
6) nearly subconvexlike
近次似凸
1.
In this paper,firstly we have introduced nearly subconvexlike set vaklued map and obtained a series of characterizations about it,lastly we give the proof of the equivalence of subconvexlike set valued map and nearly subconvexlike set valued map in linear topological spaces.
本文在线性拓补空间中 ,首先引进了近次似凸集值映概念 ,并获得了它的一些性质 ,最后我们给出了次似凸、近次似凸集值映射等价性的证明。
2.
The concept of nearly subconvexlike set-valued map is introduced and some important properties of the new concept are obtained in the linear space.
在线性空间中引入近次似凸集值映射概念,获得了它的一些重要性质。
补充资料：奉和段著作山居呈诸同志三首次本韵
【诗文】：
香花怀道侣，巾舄立双童。解印鸳鸿内，抽毫水石中。
履温行烧地，衣赤动霞风。又似朝天去，诸僧不可同。
官辞中秘府，疏放野麋齐。偃仰青霄近，登临白日低。
折腰窥乳窦，定足涉冰溪。染翰挥岚翠，僧名几处题。
暂收丹陛迹，独往乱山居。入雪知人远，眠云觉俗虚。
足垂岩顶石，缨濯洞中渠。只见僧酬答，新归绝壑书。
【注释】：
【出处】：
全唐诗：卷814-3
香花怀道侣，巾舄立双童。解印鸳鸿内，抽毫水石中。
履温行烧地，衣赤动霞风。又似朝天去，诸僧不可同。
官辞中秘府，疏放野麋齐。偃仰青霄近，登临白日低。
折腰窥乳窦，定足涉冰溪。染翰挥岚翠，僧名几处题。
暂收丹陛迹，独往乱山居。入雪知人远，眠云觉俗虚。
足垂岩顶石，缨濯洞中渠。只见僧酬答，新归绝壑书。
【注释】：
【出处】：
全唐诗：卷814-3
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条