band spread
波带扩展，波段扩散，频带扩展，频段扩展

• dividing plate
• divieded development
• diviometer
• division of amplitude
• divison
• divisor
• dizao
• dizazo process
• DLP
• DMD
• dmensionality
• D munt
• dobule-discharge technique
• documentary film
• documentary photography
• document scanner
• dodechedron
• dodging dog
• dog clutch
• dolly
• dolly on
• dolly out
• dolomite glass
• domain
• domain of definiton