因此，开发过程必然涉及到矢量符号设计和标绘的问题。

Therefore it is inevitable to lead to the problem of designing and marking vector symbols.

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还可以保存为大纲或灰度矢量符号。

Also can save vector symbols as Outlines or grayscale.

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对于分块形式的矢量和矩阵采用类似的且完全一致的符号。

A similar and completely compatible notation is used for the partitioned form vectors and matrices.

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