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-precision numeral双精度数字double epitaxial isolation双外延隔离double-seat constituency双议席选区double-end fired furnace两头烧火加热炉double tube pneumatic tyre双管充气轮胎Double Happiness cigarettedouble-slit interference双缝干涉double main teaching model双主教学模式double phase-locked loop双环锁相double-exposure hologram二次曝光全息图,双曝光全息图