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
- seismic intensity
- seismic intensity meter
- seismic intensity zoning
- seismic inversion
- seismic isolation design
- seismicity
- seismic landslide
- seismic line
- seismic measures of structures
- seismic method
- seismic microzonation
- seismic moment
- seismic moment tensor
- seismic monitoring of caverns
- seismic monitoring of underground nuclear explosions
- seismic oceanography
- seismic origin
- seismic parameter
- seismic parametric design of structures
- seismic performance levels
- seismic performance objectives
- seismic phase
- seismic physical modeling
- seismic precaution for pipeline
- seismic protection assessment for collection