double box双窝
doubleadj.双重的;成双的;两倍的v.翻一番;使 ... 加倍n.两倍;双份
double-oven unit双拼式炉具
double manipulator双面推床
double super royal双超王裁
double slide valve双动滑阀
double-hull ship双壳船
double push-pull双推挽
double card course双证课程
double containment复式包容
double manure salt硫酸钾镁盐
double tigh rappel主绳绕双腿下降