trichromatic response theory
三色响应理论

• focusing apparatus
• focusing camera
• focusing circle
• focusing ciriterion
• focusing coil
• focusing condition
• focusing control
• focusing cup
• focusing current
• focusing device
• focusing diffratometer
• focusing electrode
• focusing factor
• focusing foil
• focusing geometry
• focusing glass
• focusing knob
• focusing lens
• focusing magnetic field
• focusing mechanism
• focusing method
• focusing mount
• focusing noaode
• focusing optices
• focusing range