double tapph.doubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份double-pass monochromator双程单色仪Double-headed Hawk-mothdouble linear interpolation双线形插值double grating spectrograph双光栅摄谱仪double-disk friction gear双摩擦盘传动double-casing volute pump双套涡囊泵double - faced translator双面人译者double exchange interaction双交换相互作用double infinite environment双无限环境double factorial experiment双因子试验