double-action disc harrow：(雙列圓盤靶)雙功圓盤靶

double-action die ==> 雙效沖模 | double-action disc harrow ==> (雙列圓盤靶)雙功圓盤靶 | double-action disk harrow ==> 雙排式圓盤耙

double-action disk harrow：雙排式圓盤耙

double-action disc harrow ==> (雙列圓盤靶)雙功圓盤靶 | double-action disk harrow ==> 雙排式圓盤耙 | double-action forming ==> 雙效成形

Double-armed：雙臂的,復(fù)式臂的

Double-acting 雙作用的,雙動式的 | Double-armed 雙臂的,復(fù)式臂的 | Double coating 雙重涂層

double-bladed plough：雙鏵犁

double-bladed knife switch 雙閘刀開關(guān) | double-bladed plough 雙鏵犁 | double-bonded hydrocarbon 雙鍵烴

double-bottom compartment：雙層底艙

double-block and bleed assembly 雙止回裝置和放氣設(shè)施 | double-bottom compartment 雙層底艙 | double-bottom margin 雙層底邊板

double-bottom space：雙層底空間

double-bottom margin 雙層底邊板 | double-bottom space 雙層底空間 | double-bottom tank 雙層底艙

double-bottom margin：雙層底邊板

double-bottom compartment 雙層底艙 | double-bottom margin 雙層底邊板 | double-bottom space 雙層底空間

double-bottom vessel：雙底船

雙系纜柱 double-bitt | 雙底船 double-bottom vessel | 雙斷開關(guān) double-break switch

double-bottom trailer combination：雙聯(lián)拖車

double-bottom tank 雙重底液艙 | double-bottom trailer combination 雙聯(lián)拖車 | double-bottommargin plate 內(nèi)底邊板

double-branch bend：雙支彎頭

double-bowl vacuum centrifuge ==> 雙鼓真空離心過濾器 | double-branch bend ==> 雙支彎頭 | double-branch gate ==> 雙側(cè)澆口