Three Pass三轨法threenum.三n.三；三个adj.三个的Three Gorges Reservoir Region三峡库区three net-works convergence三网融合three layers system structure三层体系结构three bladed tracheal dilator三翼气管扩张钳, 拉博德(氏)气管扩张钳three-- dimensional model立体化模式three-station TDOA location三站时差定位Three stage prevent-control三级防控three-point pressure method三点挤压法three guarantees for products产品实行三包three - winding transformer三绕组变压器