double saw复齿锯doubleadj.双重的；成双的；两倍的v.翻一番；使 ... 加倍n.两倍；双份double-segment technique双穿刺点法double vaulted arch bridge双曲拱桥double-sensitivity VISAR双灵敏度VISARdouble-pole triple throw双刀三掷Double Resonant Oscillator双倍谐振器double precision operation双倍精度操作double remainder algorithm双余算法double anastomasis forceps双吻合钳double-wound transformer双绕变压器double refractory gold ore双重难处理金矿石