用增量值编程时，以径向实际位移量的二倍值表示，并附上方向符号(正向可以省略)。
When programming with incremental value, in radial direction, the displacement of two times the actual value, and the enclosed said direction signs (omit the positive).
因此，你自由选择的方向,会决定符号。
So the direction, that you are free to choose determines the signs.
两人曾拍摄过一个以食物为主题的私人项目，他们从拍摄符号性的图像开始将这个项目引向了令人惊讶的方向。
For a personal project centered on food, the couple started with iconic images and took them in surprising directions.
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