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
down-hole DC electrical method井下直流电法
downhole gas/water separation井下气液分离
downwelling atmospheric radiation大气逆辐射
down-the-hole hammer drilling潜孔锤钻进
down-ward progression of gravel砾石逐渐向下充填推进
downhole temperature distribution井下温度分布
Down-the-middle lay-up shot从正面上篮
down-convection box type heater烟气下行对流型箱式炉
"mass-produced downscale versions of high-priced fashions"