electro-optical retarder
电光减速器

• doubly resonant oscillator
• doubly resonant parametric oscillator
• doughnut-shaped flash lamp
• doughunt
• Dove prism
• dovetail
• dovetailed way
• dovetail groove
• dovetail guide
• dovetailing
• dovetail slide
• Dowell interferometer
• dowel [pin]
• down-coming wave
• down-conversion
• down-converter
• down shot
• draft
• draft equipment
• drafter
• drafting
• drafting board
• drafting scale
• drag
• drag coefficient