To aid in conversion, you can upgrade a file system from ext3 to Btrfs (and also back, but only to the point at which conversion was done).

为了协助转化，可以将文件系统从ext3升级到Btrfs(反之亦然，但只能在实现转化之后)。

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Bidirectional data conversion of model drawing and data file is supplied, and it can communicate with many finite element system or user programmed system.

系统还配有图形和数据的双向转化功能，可以和现有的多种有限元分析系统或者用户的结构分析系统对接。

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The system is mainly composed of file module of reading data, creation module of NURBS curve, surface construction module, parameterization modifying module, data conversion module and user interface.

系统主要由读取数据文件模块、NURBS曲线生成模块、曲面构造模块、参数化修改模块、数据转换模块以及用户界面组成。

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