Huygens-Fresnel principle
惠更斯-菲涅耳原理

• hyposcope
• hypostereoscopic image
• hyposteroscopy
• hypotenuse
• hypothesis
• hypsochromic shift
• hysteresis
• hysteresis curve
• hysteretic angel
• iabsorption
• IC
• IC driverscpe
• ice crystal
• Iceland spar
• Icelnned spar
• IC gate float
• X-ray hologram
• X-ray holography
• X-ray image dissection
• X-ray image intensifier
• X-ray imaging telescope
• X-ray-induced fluorescence
• X-ray inspection
• X-ray interferometer
• X-ray interferometry