transitionaryadj.变迁的；过渡的transitionn.转变；过渡transitional provision过渡性条款transition and upgrade转型升级transition region line过渡区谱线transition perspective转型视角transitional complexes转变型综合波transitional radiation渡越辐射transition flight test过渡飞行试验transitional leukocyte[医] 单核细胞transition metal oxides过渡金属氧化物Transition-type Firms转型企业