简化方程

The non autonomy statement equation basic circuit was established in this paper,and the conservation electric charge equation was worked out basing the periodicity of its stable solution.

对包络检波的基本电路建立非自治状态方程，并根据其稳定解的周期性，推导出电路的电荷量守恒方程，并通过假设的条件近似和简化方程。

By the analysis of dive and horizontal plane nonlinear model, the catastrophe model on de dive plane is deduced, and catastrophe stability is analysized. In the horizontal plane, simplified equation is gained by center manifold theory, then draws the conclusion that the stability of limit circle arises from critical point is relate to small difference of move point and critical point.

通过对潜艇垂直面和水平面非线性运动模型进行分析，导出垂直面运动的突变控制模型，并进行了突变稳定性分析；在水平面运动的非线性分析中，通过中心流形定理简化方程，得出临界点处极限环的稳定性与微差占的符号有关的结论，这样在无法或很难得到李亚普诺夫函数的情况下，可以通过这种方法判别临界点的稳定性。

Due to the continuous movement of the laser beam, a local coordinate system centered on the laser beam is used to simplify the analytical calculation.

考虑到激光束的持续移动，采用了坐标原点位于光斑中心的动坐标系来简化方程的求解计算。

This text proceed with the theory of the vibration, utilize typical elastic hinge law analyze structure dynamics characteristic when the blade is quivered to instability, and then use relevant knowledge of blade vibration to simplify the model and the aerodynamic force of the vibration. Through the simplification, we can get the equation of the blade, which is dispersed to its instability. Then VISUAL BASIC procedure is utilized to work out thecharacteristic value of vibration and the vibration frequency. At last comparing the result which is calculated by the above-mentioned theory formulae with the result which is calculated by internationally agreed procedure ANSYS to verify the accuracy of the formula of reduction.

本文从振动理论入手，利用最为典型的弹性铰链法分析叶片发生颤振失稳时的结构动力学特性，然后对振动模型及振动时所受的气动力进行简化，利用简化方程得到叶片发生发散失稳时的振动方程，利用编制的VISUAL BASIC程序解出振动的特征值并得到振动频率，最后分别通过上述的理论公式和国际通用的有限元程序ANSYS对风力机叶片模型进行发散失稳时的频率计算，验证简化公式的准确性。

The viscoelastic modeling in 2-D SEG/EAGE salt dome model is carried out by using the simplified viscoelastic equations. A comparison of the viscoelastic single-shot records derived from acoustic equations, Carcione's equations and the simplified viscoelastic equations is made.

并利用该简化方程对SEG/EAGE二维盐丘模型进行了正演数值模拟，将模拟得到的单炮记录和声波、Carcione黏弹性波方程模拟得到的单炮记录进行了对比分析。

The results show that the simplified viscoelastic equations not only have the better effects of single-shot records, but also have a better computational efficiency than Carcione's viscoelastic equations and it agrees well with the theoretical analysis.

结果表明该简化方程模拟得到的单炮记录不仅具有较好的效果，而且比Carcione黏弹性波方程计算效率高，与理论分析基本相符。

In order to distinguish between the physical basis of the HH equations, in terms of the flow through the axon membrane of sodium and potassium ions, on the one hand, and the phenomena of excitation above a threshold value of stimulus, and propagation along the axon, on the other, it seemed that it would be useful to simplify their equations in order to isolate these properties from each other.

为了区分的物理基础的螺杆菌方程，从流经轴突膜的钠和钾离子，一方面，与上述现象的激励的阈值的刺激，并沿轴突传播另一方面，它似乎将是有益的简化方程，以孤立这些财产彼此。

According to the situation in permafrost regions, the governing differential equations of heat transfer in frozen zone and unfrozen zone are simplified.

根据冻土地区的实际情况对圆形隧道正冻区和未冻区的热传导方程进行简化，应用无量纲量和摄动技术对简化方程进行求解，给出了圆形隧道冻结过程的近似解析解。

A set of apparatus for determining solid-liquid equilibrium data at atmospheric pressure has been established. The solubility of sebacic acid in water, 20% ethanol aqueous solution, 50% ethanol aqueous solution, 80% ethanol aqueous solution and ethanol were determined. Wilson equation, ideal thermodynamics equation and λh equation were applied to describe solid liquid equilibria data.

建立了一套常压固液平衡测定装置，测定了癸二酸在水、20％乙醇-水溶液、50％乙醇-水溶液、80％乙醇-水溶液、无水乙醇体系中的溶解度，并用Wilson方程、热力学简化方程和λh方程模型对实验数据进行关联。

AVO characteristics were ambiguous in thin-layer interbed sandstones and mudstones of terrestrial facies of Daqing area.

Hillterman简化方程的AVO技术，进行了三维AVO反演，得到垂向入射反射系数（ND和泊松反射系数两个主要AVO属性体。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失