double cone classifier：雙錐類析器

"double-concave lens","雙凹透鏡" | "double cone classifier","雙錐類析器" | "double-convex lens","雙凸透鏡"

double cone mixer：雙錐混合器

double conductor cord 雙芯塞繩 | double cone mixer 雙錐混合器 | double cone 對頂圓錐

double cone mixer：雙圓錐式混合機

double bond isomerism 雙鍵異構(gòu)性 | double cone mixer 雙圓錐式混合機 | double decomposition 復(fù)分解

double cone mixer：雙錐混合機

double coated electrode 雙層藥皮焊條 | double cone mixer 雙錐混合機 | double contraction 雙重收縮

double cone mixer：雙錐形混合機

double cocoon silk 雙官絲 | double cone mixer 雙錐形混合機 | double cure method 二段烘焙

double cone insert：雙錐形硬合金鑲齒

double column run 雙管試驗 | double cone insert 雙錐形硬合金鑲齒 | double core barrel drill 雙筒取心鉆具

Double cone dowel：雙錐頭合釘

"雙側(cè)接榫法","Double cogging" | "雙錐頭合釘","Double cone dowel" | "雙開分道岔","Double curved turnout"

double cross：雙交

double cropping system 兩熟制 | double cross 雙交 | double fertilization 雙受精

double cross lash：雙交叉固縛

double crank 雙曲柄 | double cross lash 雙交叉固縛 | double crown 雙冠形結(jié)節(jié)

double cross hybrid：雙雜交種

double cross 雙交,雙雜交,雙雜交種 | double cross hybrid 雙雜交種 | double cross welt 雙咬口十字縫