double-surface wood planer：雙面木工刨床

double-surface transistor 雙面晶體管 | double-surface wood planer 雙面木工刨床 | double-swiveling uncoiler and recoiler 并列回轉(zhuǎn)式開卷-卷取機(jī)

double-head wire stitching machine：雙頭鐵絲訂書機(jī)

double-head tyre 雙緣輪胎 | double-head wire stitching machine 雙頭鐵絲訂書機(jī) | double-head wrench 雙頭扳手

double rail track circuit：雙軌道電路

double pole switch 雙刀開關(guān) | double rail track circuit 雙軌道電路 | double range drive 雙量程傳動(dòng)

double rail track circuit：雙軌軌道回路

"double radial engine","雙排星形發(fā)動(dòng)機(jī)" | "double rail track circuit","雙軌軌道回路" | "double reduction","雙級(jí)減速"

double rail track circuit：雙軌條軌道電路

3140 double-rail retarder 雙軌條車輛減速器 | 3141 double-rail track circuit 雙軌條軌道電路 | 3142 double-sided shunting signal 雙面調(diào)車信號(hào)機(jī)

double side razor blade：雙面保險(xiǎn)刀

double saw 復(fù)齒鋸 | double side razor blade 雙面保險(xiǎn)刀 | double spine saw 復(fù)齒鋸

double side razor blade：雙面保險(xiǎn)儀

double saw復(fù)齒鋸 | double side razor blade 雙面保險(xiǎn)儀 | double spine saw復(fù)齒鋸

double rear vault：雙臂騰越

double play 雙殺 | double rear vault 雙臂騰越 | double referee system 雙裁判制

double wheel plow：雙輪犁

double webbed wheel ==> 復(fù)板輪 | double wheel plow ==> 雙輪犁 | double winding armature ==> 雙繞組電樞

double wheel lathe：雙輪式車床

double weight paper 厚紙 | double wheel lathe 雙輪式車床 | double wheel pulley 雙輪環(huán)式滑車