doublenessn.二倍诡计doubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份double-syllable compound word双音合成词double two-step exercise test双倍二级梯运动试验double - length hash function双倍长度的Hash函数double pin crane fixation frame双针起重机式固定架double-ball coordinate system双球坐标系double factor variance analysis双因素方差分析double feed induction generator双馈式异步电机double sideband emitted carrier双连带发射的载波double chamber right ventricles右室双腔double-spring interface model双弹簧界面模型