serviceable range

• 使用范围

serviceable range的用法和样例：

例句

1. The available range of microcomputer systems is evolving more rapidly than minicomputers.
   微机的使用范围比小型机发展更迅速。
2. In this aticle,we discuss two criterias judging the steadiness of the negative feedback system and range wielding them.
   本文讨论了判定负反馈系统稳定性的两个准则及它们的使用范围。