What does FDM stand for in 3D printing and how does it work?

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FDM stands for fused deposition modeling, but what does that mean, and how does it differ from other 3D printing methods? Let's find out.
摘要按规则整理自下方来源原文

FDM stands for fused deposition modeling, but what does that mean, and how does it differ from other 3D printing methods? Let's find out.
摘要按规则整理自下方来源原文