system oil大型船用十字头柴油机轴承润滑油systemn.系统；体系；身体；制度system of fits and tolerances公差与配合制system of centralized payment集中收付制度system of publishing planning策划编辑制system level CMOS chip design系统级芯片设计system management workstation系统管理工作站system/architecture design系统/结构的设计system specification language系统规格说明语言System Component Verification系统部件检验system of unit of measurement测量单位制system of auxiliary equations辅助方程组