光学、声学 光学 penumbra 半影 penumbra 半影†
penumbra 半 阴 影
penumbra 半影
计算机应用 计算机辅助设计与图形学 释文 penumbra 半影区
- line-plane intersection
- line point picking
- line printer
- line production
- line profile
- line-profile variable
- line protection
- Liner
- liner
- line radiation
- line radio
- line ratio
- line ratio method
- liner board
- liner cementing
- liner completion
- Liner Conference
- liner drilling system
- line receiver
- line reconnaissance and survey
- line relaxation
- line relaxation method
- line replaceable unit
- line resistance
- liner freight rate