downspout词汇搭配

Downtonn.唐顿downadv.向下prep.沿着 ... 而下adj.向下的；消沉的；无礼的n.绒毛；汗毛v.击倒；打败；吞下；被抑制Downhearted thoughts hinder progress.消沉的思想妨碍进步。downdraft constant-vacuum carburettor下吸式恒真空度化油器downhole helical axial gas-liquid pump井下螺旋轴流式气液混抽泵down-hole bi-directional flow valves井下流体双向流动阀downlink and uplink synchronization codes上下行同步码downdraft constant - vacuum carburettor下吸式恒真空度化油器down-path equivalent system temperature下行线等效系统温度down L-Wave-band orbit time comparison下行L波段轨道法时间比对Down-flow anaerobic suspending media bed厌氧悬浮填料床downlink multiuser multi-antenna systems下行多用户多天线系统