The grid file which is produced in the creation of grid is the premise of grid interpolation, and reasonable grid file format should be made for the convenience of interpretation and applications.

建立格网过程中生成的格网文件是格网内插的前提，为了使格网文件便于解释和应用，需要制订合理的格网文件格式。

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Using acoustic equation, the paper conducts spline interpolation for step surface data and results in quadrilateral grid partition coincident with relief surface.

本文利用声波方程，对阶梯状地表数据进行样条插值处理，得到了与起伏地表比较吻合的四边形网格剖分。

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Based on infinite interpolation theory and multi-block grid technique, construction grid of interceptor missile with multiple attitude control motors was generated.

基于无限插值理论和多块网格技术，生成了带多姿控发动机的拦截弹结构体网格。

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