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
acid swollen sole leather
assume sole responsibility for profit and loss
auto hydraulic balancing sole attaching machine
automatic rotary type PVC sole injection moulding machine
automatic sole bevelling machine
automatic sole stamping machine
be the sole agent for a production unit or firm