简化

In order to reduce the computer time for solving the block-matrix equations, the characteristic matrix transformation is used.

采用特征向量变换，可在保证原方程组离散化精度的条件下使计算大为简化。

In the range of 200~600 nm,the absorbance at 12 wavelengths was taken as characteristic parameter of artificial neural network.

人工神经网络是在生物学中神经网络理论的基础上，简化了复杂结构的偏微分方程，构成了多个神经元互联网络的结构，研究这

Model of water supply networks dynamic simulation is finished through analysis of parameter simulation and characteristic of big city.

深入分析了供水管网动态模型校核方法和影响模型精度的各种影响因素，探讨了简化模型校核过程的原则和方法，在深入剖析灵敏度分析法、解析法和解非线性方程组法等校核方法优缺点的基础上，提出了"最优化方法"作为供水管网系统动态模拟模型校核的基本方法，并以天津市供水管网170个实测点的实测数据对模型进行了校核，使模型达到了预定的精度要求，同时也证实了模型校核方法的适用性。

In this paper, we study the differential form Wus method and put emphasis on the algorithm of differential characteristic set for differential polynomial system, and its applications.

首先，在系统总结微分情形吴方法的算法的基础上，提出了一种简化算法′算法，并给出了相应的理论证明。

Numerical simulating of the regulation was made. The mathematics model of water movement and the experience model of water absorbing were constructed for tomato, basing on the study on the characteristic of its root distribution. Movement of soil water was simulated, and the front of nitrogen was forecasted, using the piston flow model.

根据温室滴灌西红柿的实际情况，在对西红柿根系分布特征的田间试验分析的基础上，建立了滴灌西红柿水分运动数学模型和西红柿根系吸水经验模型，对田间土壤水分动态进行了模拟，运用简化的氮素运移活塞模型对土壤中氮素溶质锋面进行了预测。

In the dissertation, a new corrected method, straightened algorithm, is presented, with the help of the algorithm, not only the characteristic of sparsely strip matrix be can assured, but also the complicated extent of calculation be can greatly reduced because the variables that locate only in the strip matrix are optimized.

而本文提出了一种新的修正方法—拉直算法，该方法不仅能够保证修正后系统模型的矩阵仍然保持带状稀松的特点，而且由于只对在系统矩阵的带状部分进行优化，其计算的复杂程度也简化了许多。

Using its AR model parameter as characteristic vector, the fault diagnosis of diesel engine can be realized.

论文应用粗糙集理论对反映柴油机运行工况的特征参数进行了属性简化，通过人工神经网络实现了对柴油机故障的自动分类和诊断。8、论文的最后一章对全文的主要研究内容进行了总结，给出了主要研究结论和创新点，指出了论文的不足和今后的研究重点。

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。

Based on the previous MHD duct flow experiments, the law of mass conservation, the law of charge conservation and the Lorentz force as well as the principle of equivalent circuit, a simplified theoretical method to analysis MHD effect of duct with FCI is developed.

基于先前的普通管道中的MHD效应的实验结果和质量守恒定律（或液态流体不可压缩原理）、洛仑磁力定律和电荷守恒定律，再利用有源网络等效方法，发展出一种简化而有效的分析带通道插件管道的磁流体动力学效应的方法。

Using partial least squares in conjunction with the chebyshev polynomial representation, the expression for the simplifying model is built, and is provided to determine the optimal MR damper marker.

采用偏最小二乘法误差估计、Chebyshev多项式拟合建立了MR阻尼器简化模型的参数化表达式，为合理选择MR阻尼器提供了便捷的可靠的手段。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。