SLDn.双倍左移(图纸的装箱单日;拉门;减速;螺线管)
SLabbr.透镜分光计(=lens spectrometer)abbr.海平面(=sea level)
sliding rail screw滑道撑紧螺钉
sliding scale plan可变分配率制度
sliding dog clutch滑动爪形离合器
sliding head stock滑动床头箱
sliding structures滑移隔震结构
sliding scale duty[经] 滑动税率
sliding micrometer滑动测微计
sliding-bat kiln滑板窑, 滑底隧道窑
sliding door track推拉门滑轨