service life

• n. 运行寿命；工作期限寿命；耐用年限；服务年限；使用寿命；有效寿命；使用期限

例句

用作名词 (n.)

1. Data that focus not on age but on length of service give similar results and confirm that the frequency rate of work accidents decreases with length of service.
   事故的次数的多少与人的年龄无直接关系，但与服务的年限的长短有关，事故的频率随著服务年限的增长而减少。
2. The machine's life is very long.
   这机器使用寿命很长。
3. Brand new bearing prolongs the service life.
   全新轴承，增加使用寿命。
4. The disk space required by a snapshot depends on how many different pages in the source database are updated during the life of the snapshot.
   快照所需的磁盘空间取决于在快照使用期限内源数据库中更新的不同页的数量。