double nut双螺帽
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
double bond isomerization双键异构
double-word instruction双字指令
double Interact interface双出口
double contrast cystogram双对比膀胱造影(照)片
double core optical fiber双芯光纤
double nonlinear coupling双重非线性耦合
Double-season late rice双季晚稻
double exchange mechanism双交换机制
double-sided compressor双面进气压气机
double-compartment cell双室电解槽