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
- marasmus
- Marathi films
- Marathi language
- Marathis
- marathon
- Marathon group therapy
- Marathon of Summer Deaflympics
- marathon of Summer Paralympics
- marathon of Summer Special Olympics
- Maratos effect
- marattia family
- Mar Bayzhiev
- marble
- marble cone
- marble cutter
- marbled eel
- Marbled flounder
- marbled polecat
- marbled rockfish
- Marble Garden
- marble problem
- Marble Statue of a Woman
- marbofloxacin
- Marburg
- Marburg hemorrhagic fever