twolinkn.两段线路
twonum.二;两个
two-hole coupler双孔耦合器
two-phase selsyn二相自动同步机
Two machine system两机系统
Two-Step Cluster两阶段聚类
two-position key二位电键
two-lobe chamber双弧工作室
two-pulse lasers二束脉冲激光
two peak generator双峰(X线高压)发生器
two - mode field双模光场
two-state theory二态学说