词汇	digital switching exchange
释义	digital switching exchange 数字交换机
随便看	water and sediment content Water and sediment data water and sediment diversion water and sediment exchange water and sediment flow water and sediment flux water and sediment fluxes water and sediment in fixed oil water and sediment load variation water and sediment reduction benefits water and sediment regulation water and sediment regulation experiment water and sediment regulation test water and sediment resources water and sediment series water and sediment test water and sediment transport water-and-sewage water and silt conditions water and silt regulation water and silt situation water and slat bearing crude Water and soil water and soil balance water and soil chemical action