UPEC尿路致病性大肠杆菌upadv.向上；起来；上升；往上prep.向上adj.向上的；上行的n.上升v.上升；增加Up went this roaring dragonfly.蜻蜓轰然上升。up-to-standard reconstruction达标改造up-voltage compensation control升压补偿Up - sampling - interpolating增采样内插uprising dynamic load coefficient起升动载系数updating of forest resources data森林资源数据更新up-flow biological aeratedfilter曝气生物滤池UPS - Uninterrupted Power System不间断电源系统Up keeping of inspection record.收集保存检验记录；up-flow anaerobic sludge blanket上流式厌氧污泥床