double jig-back：雙線簡(jiǎn)易架空索道

"double intakes","雙進(jìn)風(fēng)巷制" | "double jig-back","雙線簡(jiǎn)易架空索道" | "double parting","錯(cuò)車巷"

double-end knife colter：翻換式直犁刀

double-end block plane ==> 雙向刨 | double-end knife colter ==> 翻換式直犁刀 | double-end mill ==> 雙端銑刀

double-shear lap riveting：雙剪搭接鉚接

double-shear joint 雙剪接合 | double-shear lap riveting 雙剪搭接鉚接 | double-sheave top lift block 雙輪千斤索滑車

double head latch needle：雙鉤舌針

雙吊綜法;雙把吊 double harness cord | 雙鉤舌針 double head latch needle | 雙鐵片起落多臂織機(jī),複動(dòng)式多臂機(jī) double index dobby

double luff tackle：三接二轆轤

帶雙纜綁牢 double and made fast | 三接二轆轤 double luff tackle | 雙輪吊貨滑車 double sheave cargo block

double maces：雙瞷

73) 雙鉤 double hooks | 74) 雙瞷 double maces | 75) 雙鞭 double whips

double tapered muff coupling：塞勒聯(lián)軸節(jié)

double tail 雙尾翼 | double tapered muff coupling 塞勒聯(lián)軸節(jié) | double threaded screw 雙紋螺釘

two double whiskies：兩杯雙份的威士忌酒

a double helping 一客雙份的食物 | * two double whiskies 兩杯雙份的威士忌酒 | * the new bleach with double strength for killing germs 殺菌力特強(qiáng)的新型漂白劑.

double S 22-degree angle wrench：雙S形22度斜口扳手

double rubberized fabric 雙層膠布 | double S 22-degree angle wrench 雙S形22度斜口扳手 | double safety pressure cooker 雙保險(xiǎn)壓力鍋

double t iron：工字鋼

double suction pump 雙吸泵 | double t iron 工字鋼 | double tail 雙尾翼