采用传输线理论，在线性近似条件下推导出起因于输入电压的非对称和电路元器件非对称的纹波的解析表达式。
By using transmission line theory and linear approximation of the circuit, analytical expressions are derived for the ripple due to asymmetry of input voltages and circuit elements.
首先，从理论上讨论了各向异性介质中的反射和透射系数方程，给出了裂缝介质的线性近似反射系数公式；
There are two approximate reflection coefficients applied generally, and their differences are compared in order to attain the linear formula of azimuthal AVO inversion of P-wave.
经过理论分析和数值计算，发现样品对光束横截面上产生的非线性相移非常近似于高斯分布。
With theoretical analysis and numeric calculation, it is found that the transverse nonlinear phase shift caused by the sample can be very well fitted by a Gaussian function.
通过理论分析，给出了TS -B3型温度传感器线性化误差的近似计算式及电路参数的计算方法。
An approximate formula of linear error about TS-B3 temperature sensors and calculation methods about circuit parameter were given by theory analysis.
建立了偶极矩、核四极矩偶合常数中的场梯度及晶体非线性光学系数的近似理论表达式。
Approximate theoretical expressions are given for dipole moment, field gradient at the nucleus, and nonlinear susceptibility of crystals.
应用传统的极限分析理论，对可简化为刚塑性的材料本构关系提出了一种改进的“刚性-非线性强化”近似模型。
Advances an improving rigid nonlinearity hardening approximate model of the constitutive relations using the traditional theory of plastic limit analysis.
对阀控对称缸的电液伺服模型进行工作点附近近似线性化处理，应用线性理论的方法对控制器进行设计并仿真。
As to the valve controlled symmetrical cylinder, the method of approximately linearization of the model round work-point was used and applied classic PID theory to system to simulate.
工程上常用线性系统理论来近似处理非线性系统，这样处理存在一定的误差。
People try to use linear theory to analyze nonlinear systems approximately, however, those ignored nonlinear factors will induce unacceptable errors.
由于该方案是基于近似的线性最小均方误差估计准则而设计的，因此它是一种理论上的准最佳跟踪方案。
As the scheme is designed conforming to the criteria of approximate linear least-mean-square error estimation, it is theoretically quasi-optimal.
应用传统的极限分析理论，提出一种改进的刚性-非线性强化近似模型。
Based on the traditional plastic limit analysis, an improved rigid-nonlinear Hardening approximate model is established.
应用传统的极限分析理论，提出一种改进的刚性-非线性强化近似模型。
Based on the traditional plastic limit analysis, an improved rigid-nonlinear Hardening approximate model is established.
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