"subgridding" meaning in English

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          "ref": "2016, Fadime Bekmambetova, Xinyue Zhang, Piero Triverio, “A Dissipative Systems Theory for FDTD with Application to Stability Analysis and Subgridding”, in arXiv:",
          "text": "As an example of application, we derive a new subgridding method with material traverse, arbitrary grid refinement, and guaranteed stability.",
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        "The use of subgrids"
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        "(mathematics) The use of subgrids"
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  "word": "subgridding"
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        "(mathematics) The use of subgrids"
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