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
- Lu Hongding
- Lu Hongfei
- Lu Hongji
- Lu Hongshi
- Lu Huabo
- Lu Huanzhang
- Lu Hubu's Poems
- Lu Hui
- Luhun Reservoir
- Luhuo Xian
- Luhya
- luicd dreaming
- Luichewoo
- Luigi Boccherini
- Luigi Capuana
- Luigi Cherubini
- Luigi Colani
- Luigi Cremona
- Luigi Crocco
- Luigi Dallapiccola
- Luigi Galvani
- Luigi Lablache
- Luigi Nono
- Luigi Palma di Cesnola
- Luigi Pirandello