descensus 下降, 下垂descensive adj. 向下的；下降的（等于descending）descension (n.) descension n.下降(降落)descends v.下降；降臨v.傳下來；遺傳v.突然襲擊；突然拜訪descendingly adv.下降地; 遞降地descending urography 下行性尿路造影術(shù)descending tops [經(jīng)濟(jì)學(xué)]下降頂點(diǎn)趨勢descending sort [計(jì)] 降序排序 降序排列descending pipe [交通運(yùn)輸工程]豎管道descending order 降序排列，[數(shù)] 遞減次序descending optic atrophy [醫(yī)藥科學(xué)]下行性視神經(jīng)萎縮descending nodes descending node descending key 降序鍵descending inhibition [生物學(xué)]下行抑制descending development [分化] 下行展開（法）descending colon [解剖] 降結(jié)腸，下行結(jié)腸descending branch hypoglossal nerve [醫(yī)藥科學(xué)]舌下神經(jīng)降支descending aorta [解剖] 降主動(dòng)脈；下行織脈；下行支大動(dòng)脈