porous Si多孔硅porousadj.可渗透的；多孔的porous bioceramics多孔生物陶瓷porous steel parts多孔钢质零件porous biomaterial多孔生物材料porous metal plate多孔金属过滤板porous glass beads多孔玻璃porous development孔隙发育porous silica film多孔SiO2薄膜porous corn starch玉米多孔淀粉porous Pd materials多孔钯porous metal copper多孔金属铜