The near field distribution of uncoated and metal coated fiber optic probes were characterized by the method of three dimensional finite difference time domain (FDTD).
采用三维时间域有限差分（FDTD）方法研究了扫描近场光学显微镜中光纤微探针的近场分布特性。
The response of electromagnetic pulse logging in anisotropic formation was simulated with three-dimensional finite-difference time-domain (FDTD) method in cylindrical coordinate system.
利用三维柱坐标系时域有限差分(FDTD)方法计算了各向异性地层中电磁脉冲测井响应。
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