secondary harmonic generation
次谐波振荡

• ideal value
• identical graduation
• identification
• identification friend or foe (IFF) system
• identification signal
• identifier
• identity
• identity relation
• idiochromatic
• idiochromatism
• idiolelectric
• idiophanism
• idler
• idler absorption
• idnetification testing
• ifomration accumulation
• ignition
• ignition temperature
• ignitor discharge
• II irtron
• III-V long-wavelength detectors for communication
• Iintrinsic jointloss
• I Irtran-II
• iischromatic surface
• illuminance