SLUn.次逻辑单元；源程序库更新SLabbr.透镜分光计(=lens spectrometer)abbr.海平面(=sea level)slewing loader回转式装载机sleeving valve套阀,圆柱滑阀,筒阀slubbing billy头道粗纱机slicing method分层开采法sliding length滑动长度slubbing guide粗纱导纱器slustered pier束柱sliding clause工资随物价浮动条款slubbed fabric竹节布sliding bottom滑动底座