transitionn.转变；过渡transition rate跃迁率transition heat转化热,转变热,转换热transition coil过渡线圈,分流线圈transition card转换卡片,过渡卡,控制转换卡,转移卡,控制转移卡transition flow瞬变流动,不稳流动transition loss渡越损失transition type过渡型transition rail异型钢轨transition cone截锥体transition cost转制成本