double focus tube：雙焦點(X射線)管

double-ended uterine dilator 雙頭子宮擴張器 | double focus tube 雙焦點(X 射線)管 | double forceps 雙頭鑷(細菌培養(yǎng)用)

double focus tube：雙焦點

double-ended uterine dilator雙頭子宮擴張器 | double focus tube雙焦點( | double forceps 雙頭鑷(細菌培養(yǎng)用)

double focus tube：雙焦點管

雙分裂腔 double fission chamber | 雙焦點管 double focus tube | 雙聚焦 double focusing

double gang edger：雙軸齊邊圓排鋸

double end-tenoner 雙端開榫機 | double gang edger 雙軸齊邊圓排鋸 | double headed nail 兩頭釘

double halberds：雙戟

71) 雙叉 double forks | 72) 雙戟 double halberds | 73) 雙鉤 double hooks

double induction regulator：雙感應式調(diào)壓器

double image prism 雙像棱鏡 | double induction regulator 雙感應式調(diào)壓器 | double injector 雙管噴射器

double induction regulator：雙感應調(diào)壓器

雙電能暫態(tài) double energy transient | 雙感應調(diào)壓器 double induction regulator | 雙層繞組 double layer winding

double induction regulator：対形誘導電圧調(diào)整器

double inclined plane ==> 雙斜面 | double induction regulator ==> 対形誘導電圧調(diào)整器 | double infect ==> 二重感染

double intakes：雙進風道

double entry 雙平巷 | double intakes 雙進風道 | double parting 錯車道

double intakes：雙進風巷制

"double headings","雙道式煤巷" | "double intakes","雙進風巷制" | "double jig-back","雙線簡易架空索道"