lowcaladj.含热值低的lowadj.低的；少的；低落的；低声的；卑劣的；低等的adv.低地；低声地；低下地；廉价地n.低水平；低价；低谷v.哞哞叫low molecular organic acid低分子量有机酸Low temperature imbibition低温吸胀low-altitude parachuting低空跳伞low-pressure vacuum pump高级真空泵low carbon steel electrode低碳钢焊条low carbon Al killed steel低碳铝镇静钢low-frequency transistor低频晶体管low severity hydrocracking低深度加氢裂化low matching strength weld低匹配强度焊缝low-alcohol dry red wine低醇干红葡萄酒