absorptivity
(1)吸收性，吸收能力
(2)吸收率

• light injection
• light integrator
• light intensity
• light intensity function
• light intensity meter
• light intensity modulation
• Light-leakage loss
• light logic
• lightmeter
• Light meter
• light modulation
• light modulator
• Light negative
• lightness
• lightning
• lightning protector plalte
• lightning rod
• lightose lens
• lightouse
• light output
• light overtone
• light pattern
• light pen
• light pencil
• light pen detect