国际两级选择international two-stage selection【通信】
两阶段抽样法two-stage sampling【统计】
双极谐波齿轮传动two-stage harmonic gear drive【机】
两级溴化锂吸收式制冷机two-stage lithiumbromide absorption refrigerating machine
【医】 二期手术two-stage operation
两阶段预测法two-stage prediction method【金融】
二级增压器two-stage supercharger
两次烘干法two-stage drying【农】