光学、声学 光学 visual line 视线 line of sight 视线†
line of sight 视线 sight 视线；观测，瞄准
line of sight; line of vision; visual line 视线
计算机应用 计算机辅助设计与图形学 释文 view ray 视线
- ordaitopsida
- ORDBMS
- ordeal
- orde disorder transformation
- order
- orderability
- orderable
- orderable field
- orderable group
- orderable semigroup
- orderable set
- order Acorales
- order and inorder
- order Arecales
- order Asparagales
- order at a point
- order automorphism
- order axiom
- order based training
- order book
- order-bounded
- order boundedness
- order-bounded operator
- order-bounded set
- order change