However, starting with the simple Cartesian coordinate data, one would require considerable effort to produce a MM3 file.
但是以简单的笛卡尔坐标数据开始，需要相当的努力才能产生MM 3文件。
However, starting with the simple Cartesian coordinate data, one would require considerable effort to produce a MM3 file.
但是以简单的笛卡尔坐标数据开始，需要相当的努力才能产生MM 3文件。
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