以下为句子列表：
英文: A finite difference method with accuracies of fourth order in space and second order in time is proposed for time-periodic solutions of a nonlinear parabolic boundary value problem.
中文: 摘要建立了一个用于求解非线性抛物型方程时间周期解的有限差分方法，在空间和时间方向上该方法分别具有四阶和两阶精度。
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英文: Abstract: Based on photometric stereo,a new method is proposed for fabric 3-D surface reconstruction in this paper.Combining finite difference method ,the 3-D contour data of fabric is acquired,the fabric surface shape is reconstructed and analysed.
中文: 文摘:提出了一种基于光度立体视觉方法对织物进行三维表面重建.结合有限差分法,获取织物的三维轮廓数据.重建织物的表面形状并加以分析.
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英文: Abstract: Using the direct finite difference method,the formulations of phase-change heat transfer in different situations have been given.On the basis of these,a general formulation is proposed to describe the source of solidifying heat transfer.As an ex
中文: 文摘:应用直接差分方法对相变热源项进行处理，给出了各种不同情况下的计算式.在此基础上，给出了一个通用的计算公式.最后应用该方法计算了钢液的凝固传热，计算结果与物理过程吻合很好.
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英文: An ultra-wideband (UWB) microwave imaging scheme with separated transmitter and receiver was investigated by using finite difference time domain method (FDTD).
中文: 摘要介绍了一种基于半球模型的早期乳腺癌超宽带微波成像检测方案。
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英文: Based on the fourth-order difference formula of the second derivative term, a fourth-order finite difference method is developed for solving two-points boundary value problem.
中文: 摘要从中心差分公式出发，利用二阶微分的四阶差分公式，对两点边值问题得到了一种四阶精度的差分格式。
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