Line of sight
(LOS)视线
line of sight
(1)视线
(2)瞄准线

• macrophotography
• macro-pjtography
• macroprogram
• macroroentgenograph
• macroscopic
• macroscopic field
• macroscopic inhomgeneity
• macroscopie polariation
• macrosturcture
• macular area
• macular lutea
• Maddox lensMaddox
• Maddox rod
• magamp
• maganeto-optic modulators
• magazing
• magazing camer
• magenta
• magentite
• maggnifiying pwer mognistor
• magic eye
• magic lantern
• magic lantern slide
• magic square
• magicube