bead phototransistor
玻珠式光电晶体管

• specification standards
• specific detectivity
• specific dispersion
• specific efficiency
• specific gravity
• specific heat
• specific intensity of radiation
• specific luminosity
• specific pulse detectivity
• specific refraction
• specific refractivity
• specific resistance
• specific rotating power
• specific rotation
• specific rotatory power
• specific spectral detectivity
• specific visibility
• specific weight
• specimen
• specimen holder
• speck
• speckle
• speckle effect
• speckle free redundant
• speckle interferometer