Rayleigh quarter-wave limit
瑞四分之一波长极限(瑞利准则)

• double focusing
• double-focusing mass spectrometer
• double-focus interferometer
• double-folded astigmatically compensated optical cavity
• double frequency
• double-Gauss derivatives
• double-Gauss lenses
• double half-wave filter
• double heecojunction laser
• double helical gear
• double helical tooth
• double-heterostructure
• double-heterostructure injection laser
• double-humped
• double-humped wave
• double image
• double image micrometer
• double image ocular
• double image prism
• double image range finder
• double integral
• double layer
• double lens magnifier
• doublem\-beam spectrophotometer
• double mirror