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Two-dimensional matrix operations and one-dimensional Fourier transform, if the changes to what can be achieved to complete the integral operation matrix method can reduce computational complexity.

详细说明：用矩阵运算进行二维和一维傅立叶变换，如果改动一下，就可以实现矩阵方法来完成积分操作，可以减少运算量。

In order to eliminate the influence caused by the nonminimum phase characteristic of a common Boost DC／DC converter, Viswanathan K has proposed a novel tristate Boost DC／DC converter. For enhancing performance, the statespace averaging model of this converter was first presented in this paper. Due to the nonlinear nature in this model, an inputoutput feedback linearization technique was adopted, and a complete controllable linear system was obtained. Then a statefeedback control strategy was designed based on this linear system. Simulation results show that the proposed control strategy can assure constant output voltage in a wide range, so as to realize the stability of the system during large fluctuation of power supply and load disturbance. Good dynamic performance can also be achieved.

针对 Viswanathan K为消除普通BOOST DC／DC变换器的非最小相位特性而提出的三态Boost DC／DC变换器，为进一步提高这种电路拓扑的性能，在建立了变换器状态空间平均模型的基础上，针对其多变量、非线性特点，采用输入输出线性化将其转化为一个完全可控的线性系统，在此基础上应用现有成熟的线性控制策略进行了控制系统的设计，并且采用MATLAB进行仿真验证，结果表明：这种非线性控制策略可以确保输出电压在大范围内恒定可调，且即使存在大范围扰动(输入电压和负载变化均较大)的情况下，系统也可以确保稳定性和良好的动态性能。

Numerical simulation of flow field in a complex spillway tunnel is achieved in the paper.

它的应用范围越来越广泛，并成为一种研究流场的基本手段。

The commercial production of aromatics is achieved by modern aromatics combination unit with complex processes accompanying transformation between aromatics.

芳烃的大规模工业化生产是通过现代化芳烃联合装置实现的，其加工流程复杂，伴有芳烃间的相互转化过程。

He predicts to be in future inside 5 years, the compound increase rate with annual amount of Chinese network user will be achieved 18.5%, and American increase rate is only 2.2%.

他预计在未来五年内，中国网络用户数量每年的复合增长率将达到18.5%，而美国的增长率仅为2.2%。

Of course, comprehensibleness and fluency should be achieved.

当然，易解和流畅本身也要作一定的照应。

Experimental results show that 40.2% compression ratio can be achieved on average.

实验结果显示，在新的序列排列方法下可以达到42%的压缩率。

This algorithm is implemented with MPI on the Shuguang 2000 parallel system in the National High Capable Computation Center, Chengdu. The three-dimension cavity steady flow field is simulated, and a high speedup ratio is achieved.

在国家高性能计算中心的曙光2000并行系统上，采用MPI消息传递实现了此种算法，计算定常三维空穴水域流场，取了较好的加速比。

In response to the status, researchers used computer-assisted image analysis technology and achieved some success.

针对这一现状，目前国内外采用计算机辅助对肝脏疾病图像进行分析与处理并取得了一些成果。

In network information age's today, the accounting computerization has achieved the swift and violent development.

在网络信息时代的今天，会计电算化已达到了迅猛的发展。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。