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 self-perfect control系统内疗控制
system of agricultural expert农业专家系统
system-specific information系统特性信息
system of imperial succession王位继承法
system identification problem系统识别问题
system integration technology系统集成技术
system engineering management系统工程管理
System Security Working Group系统保密工作组