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
- Li Family Troupe
- Li Famo
- Li Fang
- Li Fang and Li Zhi
- Li Fanggui
- Li Fanghua
- Li Fang Photographer
- Li Fangxun
- Li Fangying
- Li Fangyuan
- Life
- life
- Life along the Bian River at the Pure Brightness Festival by Zhang Zeduan
- life analytical instruments
- Life and Death
- Life and Fate
- Life and Protein: Artificial Synthesis of Insulin
- life assessment of units
- life assistant robot
- life assurance
- life-bearing planet
- life belt
- lifeboat davit
- lifeboat special use chart
- life-career rainbow