economical life
短语词组
- economical service life 經濟使用期限
- Economical l life of equipment 設備經濟壽命
- Economical life of equipment 設備經濟壽命
- economical life of equipmen 設備經濟壽命
- economical life period 經濟壽命期
- economical life time 經濟壽命
- economical life of tractor 拖拉機經濟壽命
- tractor economical life 拖拉機經濟壽命
- economical residual service life 經濟賸餘使用壽命 返回 economical life