high-permeability material 高磁导率材料

magnetic permeability material 导磁材料

negative permeability material 负磁导率材料

Negative magnetic permeability material 以及负磁导率材料

permeability of tunnel fill material 炮眼充填材料的渗透率

constant permeability magnetic material [材] 恒导磁材料

magnetic permeability of material 导磁率

air permeability of material layer 料层透气性

high permeability epoxy grouting material 高渗透环氧灌浆材料

material layer air permeability 料层透气性