porous biological particle fluidized bed
monolithic track bed；solid bed；integrated ballast bed；monolithic concrete bed
annual temperature difference between track bed slab and bed plate
Circulating fluidized bed wity low velocity fore postied branch bed
ebullated bed ebullating bed
ebullated bed reactor ebullating bed reactor
ebullating bed ebullated bed
ebullating bed reactor ebullated bed reactor
moving packed bed and fluid bed
3D-ordered porous material
a new-type porous fence
a Porous Biomaterial Gelatin-Bletilla hyacinthine
accumulation of porous surrounding rock
active and porous agent