laser back scatter device
激光後向射装置

• speckle
• speckle effect
• speckle free redundant
• speckle interferometer
• speckle interferometry
• speckle method pattern measurement equipment
• speckle noise
• speckle pattern
• speckle photography
• speckle shearing interferometry
• specks
• specpure
• spectacle
• Spectacle dissociation test system
• Spectacle frame
• spectacle lens
• spectorfluorophotometer
• spectorgram
• spectral absorptance
• spectral absorption factor
• spectral albedo
• spectral analysis
• spectral arc breadth
• spectral bandwidth
• spectral branch