词汇	river bed paving
释义	river bed paving 河床铺砌
随便看	vertical synchronizing circuit vertical synchronizing impulse vertical synchronizing pulse vertical-synchronizing pulse vertical synchronizing signal vertical synchronous vertical sync inverter vertical sync motor vertical sync pulse vertical sync pulses vertical-sync pulses vertical sync separator vertical-sync separator vertical sync signal vertical sync-signal vertical-sync signal vertical synergism vertical system vertical system of filteration filtration vertical system of shading vertical system-water heater vertical tab vertical-tab character vertical tab control vertical table