You are drawing a graph, not a tree (although trees are also graphs).
您是在绘制图而不是树（尽管树也是图）。
The application of satellite graph in drawing up forest distribution map is a new job.
应用国土卫星图像编制森林分布图是一种新的尝试。
Grid lines crisscross each drawing page like those on traditional graph paper.
网格线交叉分布在各绘图页上，就像传统的图纸一样。
Grid lines crisscross each drawing page like those on traditional graph paper.
网格线交叉分布在各绘图页上，就像传统的图纸一样。
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