理学 3D打印中的几何计算 释 fused deposition modeling; FDM 支撑结构的计算与优化 熔融沉积式打印机（fused deposition modeling，FDM）由于价格低廉、操作简单而具有较高的普及程度。但其最大的缺点是无法直接打印模型中的悬空部位。这时往往需要用户在切片之前给悬空部分添加支撑结构，将支撑结构连同模型一起被打印，并在结束后人为去除。
网络与数据通信 协议体系与组成结构 释文 frequency division multiplexing, FDM 频分多路复用
- Abel-Goncharov problem
- Abel Hermant
- Abelian
- abelian
- Abelian algebra
- Abelian category
- Abelian crystal
- Abelian difference set
- Abelian differential
- Abelian differential form
- Abelian differential of the first kind
- Abelian differentials of the second and third kinds
- Abelian differentials of the second kinds
- Abelian differentials of the third kinds
- Abelian equation
- Abelian extension
- Abelian extension field
- Abelian field
- Abelian field extension
- Abelian function
- Abelian function field
- Abelian functor
- Abelian gauge field
- Abelian group
- Abelian groupoid