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-layer reticulated dome双层球面网壳double-sided spinning machine双面纺丝机double-twist twisting machine倍捻捻线机double-byte character session双字节字符会晤Double pull-in torque driving倍式转动double-ended grinding machine双端磨床double-layer ring-stiffened双层加肋double cone rotary vacuum dryer双锥形回转真空干燥器double-end and facing machine双头端面镗床double-integrating range unit重积分测距装置