Double Slip Switch：復(fù)式交叉轉(zhuǎn)轍器

"double-silk-covered wire ","雙層絲包線" | "double-slip switch ","復(fù)式交叉轉(zhuǎn)轍器" | "double-speed motor ","雙速電動(dòng)機(jī)"

double slide-wire potentiometer：雙滑線電勢(shì)計(jì)

double slide valve ==> 雙滑閥 | double slide-wire potentiometer ==> 雙滑線電勢(shì)計(jì) | double slider coupling ==> 十字頭聯(lián)軸節(jié)

double-faced box slide valve：雙面滑閥

double-face sluice valve 雙面閘閥 | double-faced box slide valve 雙面滑閥 | double-faced pallet 雙面托盤(pán)

double-faced box slide valve：雙面滑閥,分配滑閥

兩級(jí)蒸發(fā)鍋爐 double-evaporation boiler | 雙面滑閥,分配滑閥 double-faced box slide valve | 雙面閘閥 double-faced sluice valve

double-track skip hoist：雙料斗卷?yè)P(yáng)機(jī)

double-trace scope 雙跡示波器 | double-track skip hoist 雙料斗卷?yè)P(yáng)機(jī) | double-transit oscillator 雙渡越振蕩器

double side band：雙邊帶

double shut 雙重關(guān)閉 | double side band 雙邊帶 | Double Side Freight Tariff 雙邊費(fèi)率本

double shear steel：雙重剪切鋼

double series || 二重級(jí)數(shù) | double shear steel || 雙重剪切鋼 | double shielded winding || 雙屏蔽繞組

double-end set screw wrench：雙頭緊定螺釘扳手

double-end scraper 雙頭刮刀 | double-end set screw wrench 雙頭緊定螺釘扳手 | double-end slotting cutter 雙頭鍵槽銑刀

double alternate set saw：雙齒交錯(cuò)鋸片

"double action press","雙動(dòng)壓機(jī)" | "double alternate set saw","雙齒交錯(cuò)鋸片" | "double angle cutter","雙角銳刀"

double roll rice polisher：雙輥碾米機(jī)

double roll reversing cold-rolling mill 雙輥可逆冷軋機(jī) | double roll rice polisher 雙輥碾米機(jī) | double roll slag-crusher 雙輥碎渣機(jī)