U(2l+1)O(2l+2)过渡区
U(2l+1)O(2l+2) transitional region
鞭毛过渡区
flagellar transitional region
常驻程序过渡区
RTA Resident Transient Area
风蚀水蚀过渡区
wind-water erosion interlaced region
刚柔过渡区域
transition section between rigid and flexible areas
根茎过渡区
root-stem transitions zone
过渡区长度
length of transition zone