lens; double-convex：雙凸透鏡

雙像透鏡 lens; double image | 雙凹透鏡 lens; double-concave | 雙凸透鏡 lens; double-convex

airfoil; double-convex：雙凸翼形

airfoil; double-cambered 雙弧翼形 | airfoil; double-convex 雙凸翼形 | airfoil; double curvature 雙曲率翼形

double-cut plough：雙層犁

double-cut file 雙紋銼 | double-cut plough 雙層犁 | double-cut shears 雙刃剪切機(jī)

double-cut shears：雙刃剪切機(jī)

double-cut plough 雙層犁 | double-cut shears 雙刃剪切機(jī) | double-deck bus 兩層公共汽車

double-cut planer：雙向切削龍門刨

double-current generator || 交直流發(fā)電機(jī) | double-cut planer || 雙向切削龍門刨 | double-deck bus || 雙層公共汽車

double-cut saw：雙割鋸

double-cut plough ==> 雙層犁 | double-cut saw ==> 雙割鋸 | double-cutter shearing machine ==> 雙刀滾剪毛機(jī)

double-decked：雙層結(jié)構(gòu)的

double-deck /雙層結(jié)構(gòu)的/ | double-decked /雙層結(jié)構(gòu)的/ | double-decker /雙層結(jié)構(gòu)/雙層船/

double-decked bridge：雙層橋

雙曲拱橋:double arch bridge | 雙層橋:double decked bridge | 雙曲拱:Double curved arch bridge

double-disk winding：雙盤型線圈

double-disk turbine rotor ==> 雙輪盤渦輪轉(zhuǎn)子 | double-disk winding ==> 雙盤型線圈 | double-door drop-bottom bucket ==> 對(duì)開底卸料斗

double-disk winding：雙盤繞組

double dipole || 雙偶極子 | double disk winding || 雙盤繞組 | double donor || 雙重施主