systemfile系统文件
systemn.系统;体系;身体;制度
System Independent Data Format独立的数据格式系统
system of diophantine equation不定方程组
system of dormitory management宿舍管理系统
system of broadcasting network广播网方式
system of condition monitoring振动在线监测系统
system of appraisal indicators评估指标体系
system hard-core diagnostics系统核心硬件诊断程序
system of changed circumstance情势变更制度