查询词典 answer a double purpose

double beta decay：双贝他衰变

double bond 双键 | double beta decay 双贝他衰变 | double bed system 复床式;复床系

double blackwall hitch：双花钩结

double blackwall hitch 双钩结 | double blackwall hitch 双花钩结 | double blast 双重音汽笛

double-end block plane：双向刨

double-edge milling cutter 二面刃铣刀 | double-end block plane 双向刨 | double-end knife colter 翻换式直犁刀

double-entry book-keeping：复式记帐

double entry accounting system 复式簿记记帐法 | double entry book-keeping 复式记帐 | double entry bookkeeping 复式簿记

double-entry bookkeeping：复式薄记

double entry复式分录,复式记帐 | double-entry bookkeeping复式薄记 | double income tax relief免除双重所得税

Double Bottoms：兩- 雙谷底 港- 雙重底 台- 雙重底;W底

double barrelled bond 兩- 雙重擔保債券 | double bottoms 兩- 雙谷底 港- 雙重底 台- 雙重底;W底 | double declining balance 港- 雙重餘額遞減法 台- 倍率遞減法

Double Bottoms：双层底

double bottomed hull 双底壳 | double bottoms 双层底 | double bowed vessel 两头船(船的两端一样

double bowline：双套结

double bowed vessel 两头船(船的两端一样 | double bowline 双套结 | double braid covering 双层编织包皮

double bowstring truss：双弓弦桁架

double bounce technique 二次反射法 | double bowstring truss 双弓弦桁架 | double bracing 双支撑

double-end box spanner：双头套简扳手

double-circuit 双回路的 | double-end box spanner 双头套简扳手 | double-filament (灯泡)双丝的

attach data file：选用数据文件

158AT-keyboardAT键盘 | 159attach data file选用数据文件 | 160attach note加附注

Dall：岛

导 daw 636 | 岛 dall 902 | de 的 de 1 3