以Y－TiOPc为电荷产生材料并与电荷传输材料（包括电子传输材料与孔穴传输材料），共混于成膜树脂中制成三级分单层结构的有机光导体，系统考......

The velocity structures of flow through vertically double-layered vegetation(VDLV)as well as single-layered rigid vegeta......