first system

• 一次系统

first system的用法和样例：

例句

1. When you direct PageDefrag to defragment, the next time the system boots it will attempt to do so.
   当你命令页面碎片整理工具去整理，在下一次系统导入时，它依然会这么做。
2. In this paper, the bifurcation of limit cycles for a quartic polynomial system is investigated.
   摘要研究一类四次系统的极限环分枝问题。