双共振振荡器 doubly resonant oscillator
双共振参量振荡器 doubly resonant parametric oscillator
两次色散光谱 doubly-dispersed spectrum
双重受激能级 doubly-excited levels
环形闪光灯 doughnut-shaped flash lamp
环形室(2)环形真空罩 doughunt (1)
道威棱镜 Dove prism
燕尾(2)楔形准 dovetail (1)
燕尾槽 dovetail groove
燕尾道轨 dovetail guide
燕尾滑板 dovetail slide
燕尾导轨 dovetailed way
双共振参量振荡器 doubly resonant parametric oscillator
两次色散光谱 doubly-dispersed spectrum
双重受激能级 doubly-excited levels
环形闪光灯 doughnut-shaped flash lamp
环形室(2)环形真空罩 doughunt (1)
道威棱镜 Dove prism
燕尾(2)楔形准 dovetail (1)
燕尾槽 dovetail groove
燕尾道轨 dovetail guide
燕尾滑板 dovetail slide
燕尾导轨 dovetailed way
燕尾连接 dovetailing
定缝销钉,暗钉(2)木钉(3)定位销 dowel [pin] (1)
多威耳干涉仪 Dowell interferometer
俯瞰摄影 down shot
下射波 down-coming wave
下转换,降频转换 down-conversion
下换器,降频转换器 down-converter? (down-convertor)
草图(2)草案 draft (1)
绘图设备 draft equipment
制图机械 drafter
制图 drafting
制图板,绘图板 drafting board
制图尺,绘图尺 drafting scale
曳力,阻力 drag
电力系数 drag coefficient
曳力测定器 drag detector
消耗(2)漏极 drain (1)
漏电流 drain current
抽拉功率,抽运功率 draw power
拉杆(2)挂钩 drawbar (1)
瓣式快门 drawer shutter
抽,拉,压延(2)牵引(3)提取(4)回火(5)绘图 drawing (1)
描绘器,绘图器 drawing apparatus
制图机,绘图机 drawing machine
拉模反 drawplate
整形器,修正器 dresser
整形,修整 dressing
干燥剂(2)燥形器,烘箱 drier (1)
漂移(2)偏差 drift (1)
漂移系数 drift coefficient